[SCM] WebKit Debian packaging branch, debian/experimental, updated. upstream/1.3.3-9427-gc2be6fc

Wed Dec 22 16:30:55 UTC 2010

The following commit has been merged in the debian/experimental branch:
commit bb315268ac0a1493b1c7681fcaab528ef64b531d
Author: vangelis at chromium.org <vangelis at chromium.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Date:   Wed Nov 24 23:00:07 2010 +0000

    2010-11-24  James Robinson  <jamesr at chromium.org>
    
            Reviewed by Kenneth Russell.
    
            [chromium] Compositor needs to manage its VRAM use
            https://bugs.webkit.org/show_bug.cgi?id=49629
    
            This adds a basic texture manager to the Chromium compositor to limit the amount of VRAM
            used by compositor textures and switches ContentLayerChromium, ImageLayerChromium, and
            RenderSurfaceChromium to use managed LayerTexture.  The other *LayerChromium classes (Canvas,
            Video, and WebGL) and the root layer are still unmanaged.
    
            The TextureManager works by providing tokens to callers that want to use a managed texture.
            The token can be used to request a texture, see if the previously requested texture is still
            available, and to protect/unprotect textures when they cannot be collected.  Whenever a
            texture is created the manager attempts to free up the least recently used textures until the
            total memory use is below the provided threshhold.  If the manager cannot satisfy the memory
            limit it will not return any new textures until some old textures are released.
    
            A LayerTexture wraps a TextureManager token, size, and format.  A LayerChromium can check if a
            previously requested texture is still available for use and reserve the LayerTexture's underlying
            storage between the updateContentsIfDirty() and the draw() call.
    
            Also changes LayerChromium from having separate contentsDirty()/updateContents() calls to a single
            updateContentsIfDirty().
    
            Tests: compositing/lots-of-img-layers-with-opacity.html
                   compositing/lots-of-img-layers.html
    
            * WebCore.gypi:
            * platform/graphics/chromium/Canvas2DLayerChromium.cpp:
            (WebCore::Canvas2DLayerChromium::updateContentsIfDirty):
            * platform/graphics/chromium/Canvas2DLayerChromium.h:
            * platform/graphics/chromium/ContentLayerChromium.cpp:
            (WebCore::ContentLayerChromium::cleanupResources):
            (WebCore::ContentLayerChromium::updateContentsIfDirty):
            (WebCore::ContentLayerChromium::updateTextureRect):
            (WebCore::ContentLayerChromium::draw):
            * platform/graphics/chromium/ContentLayerChromium.h:
            * platform/graphics/chromium/ImageLayerChromium.cpp:
            (WebCore::ImageLayerChromium::updateContentsIfDirty):
            * platform/graphics/chromium/ImageLayerChromium.h:
            * platform/graphics/chromium/LayerChromium.h:
            (WebCore::LayerChromium::updateContentsIfDirty):
            (WebCore::LayerChromium::draw):
            * platform/graphics/chromium/LayerRendererChromium.cpp:
            (WebCore::LayerRendererChromium::LayerRendererChromium):
            (WebCore::LayerRendererChromium::prepareToDrawLayers):
            (WebCore::LayerRendererChromium::drawLayers):
            (WebCore::LayerRendererChromium::updateLayersRecursive):
            (WebCore::LayerRendererChromium::useRenderSurface):
            (WebCore::LayerRendererChromium::drawLayer):
            (WebCore::LayerRendererChromium::initializeSharedObjects):
            (WebCore::LayerRendererChromium::cleanupSharedObjects):
            * platform/graphics/chromium/LayerRendererChromium.h:
            (WebCore::LayerRendererChromium::renderSurfaceSharedValues):
            (WebCore::LayerRendererChromium::textureManager):
            * platform/graphics/chromium/LayerTexture.cpp: Added.
            (WebCore::LayerTexture::LayerTexture):
            (WebCore::LayerTexture::~LayerTexture):
            (WebCore::LayerTexture::isValid):
            (WebCore::LayerTexture::reserve):
            (WebCore::LayerTexture::unreserve):
            (WebCore::LayerTexture::bindTexture):
            (WebCore::LayerTexture::framebufferTexture2D):
            * platform/graphics/chromium/LayerTexture.h: Added.
            (WebCore::LayerTexture::create):
            * platform/graphics/chromium/PluginLayerChromium.cpp:
            (WebCore::PluginLayerChromium::updateContentsIfDirty):
            * platform/graphics/chromium/PluginLayerChromium.h:
            * platform/graphics/chromium/RenderSurfaceChromium.cpp:
            (WebCore::RenderSurfaceChromium::SharedValues::SharedValues):
            (WebCore::RenderSurfaceChromium::SharedValues::~SharedValues):
            (WebCore::RenderSurfaceChromium::RenderSurfaceChromium):
            (WebCore::RenderSurfaceChromium::cleanupResources):
            (WebCore::RenderSurfaceChromium::prepareContentsTexture):
            (WebCore::RenderSurfaceChromium::draw):
            * platform/graphics/chromium/RenderSurfaceChromium.h:
            (WebCore::RenderSurfaceChromium::SharedValues::shaderProgram):
            (WebCore::RenderSurfaceChromium::SharedValues::shaderSamplerLocation):
            (WebCore::RenderSurfaceChromium::SharedValues::shaderMatrixLocation):
            (WebCore::RenderSurfaceChromium::SharedValues::shaderAlphaLocation):
            (WebCore::RenderSurfaceChromium::SharedValues::initialized):
            * platform/graphics/chromium/TextureManager.cpp: Added.
            (WebCore::memoryUseBytes):
            (WebCore::TextureManager::TextureManager):
            (WebCore::TextureManager::getToken):
            (WebCore::TextureManager::releaseToken):
            (WebCore::TextureManager::hasTexture):
            (WebCore::TextureManager::protectTexture):
            (WebCore::TextureManager::unprotectTexture):
            (WebCore::TextureManager::reduceMemoryToLimit):
            (WebCore::TextureManager::addTexture):
            (WebCore::TextureManager::removeTexture):
            (WebCore::TextureManager::requestTexture):
            * platform/graphics/chromium/TextureManager.h: Added.
            (WebCore::TextureManager::create):
            * platform/graphics/chromium/VideoLayerChromium.cpp:
            (WebCore::VideoLayerChromium::updateContentsIfDirty):
            * platform/graphics/chromium/VideoLayerChromium.h:
            * platform/graphics/chromium/WebGLLayerChromium.cpp:
            (WebCore::WebGLLayerChromium::updateContentsIfDirty):
            * platform/graphics/chromium/WebGLLayerChromium.h:
    2010-11-24  James Robinson  <jamesr at chromium.org>
    
            Reviewed by Kenneth Russell.
    
            [chromium] Compositor needs to manage its VRAM use
            https://bugs.webkit.org/show_bug.cgi?id=49629
    
            Adds a few tests involving lots of visible image layers.  The tests are designed
            to require slightly more than 64MB of VRAM.
    
            * compositing/lots-of-img-layers-with-opacity.html: Added.
            * compositing/lots-of-img-layers.html: Added.
            * platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.checksum: Added.
            * platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.png: Added.
            * platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.txt: Added.
            * platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.checksum: Added.
            * platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.png: Added.
            * platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.txt: Added.
            * platform/chromium-gpu/test_expectations.txt:
            * platform/mac/compositing/lots-of-img-layers-expected.checksum: Added.
            * platform/mac/compositing/lots-of-img-layers-expected.png: Added.
            * platform/mac/compositing/lots-of-img-layers-expected.txt: Added.
            * platform/mac/compositing/lots-of-img-layers-with-opacity-expected.checksum: Added.
            * platform/mac/compositing/lots-of-img-layers-with-opacity-expected.png: Added.
            * platform/mac/compositing/lots-of-img-layers-with-opacity-expected.txt: Added.
    
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@72701 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
index 0e6aee8..fd1ce24 100644
--- a/LayoutTests/ChangeLog
+++ b/LayoutTests/ChangeLog
@@ -1,3 +1,29 @@
+2010-11-24  James Robinson  <jamesr at chromium.org>
+
+        Reviewed by Kenneth Russell.
+
+        [chromium] Compositor needs to manage its VRAM use
+        https://bugs.webkit.org/show_bug.cgi?id=49629
+
+        Adds a few tests involving lots of visible image layers.  The tests are designed
+        to require slightly more than 64MB of VRAM.
+
+        * compositing/lots-of-img-layers-with-opacity.html: Added.
+        * compositing/lots-of-img-layers.html: Added.
+        * platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.checksum: Added.
+        * platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.png: Added.
+        * platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.txt: Added.
+        * platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.checksum: Added.
+        * platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.png: Added.
+        * platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.txt: Added.
+        * platform/chromium-gpu/test_expectations.txt:
+        * platform/mac/compositing/lots-of-img-layers-expected.checksum: Added.
+        * platform/mac/compositing/lots-of-img-layers-expected.png: Added.
+        * platform/mac/compositing/lots-of-img-layers-expected.txt: Added.
+        * platform/mac/compositing/lots-of-img-layers-with-opacity-expected.checksum: Added.
+        * platform/mac/compositing/lots-of-img-layers-with-opacity-expected.png: Added.
+        * platform/mac/compositing/lots-of-img-layers-with-opacity-expected.txt: Added.
+
 2010-11-24  Tony Chang  <tony at chromium.org>
 
         Unreviewed, updating plugin test expectations now that we've switched
diff --git a/LayoutTests/compositing/lots-of-img-layers-with-opacity.html b/LayoutTests/compositing/lots-of-img-layers-with-opacity.html
new file mode 100644
index 0000000..1744689
--- /dev/null
+++ b/LayoutTests/compositing/lots-of-img-layers-with-opacity.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<body style="overflow:hidden">
+<script>
+for (var i=0; i<350; ++i) {
+    var img = document.createElement("img");
+    img.style.webkitTransform = "rotate("+(i/2)+"deg) translateZ(0)";
+    img.style.webkitTransformOrigin = "300px 300px";
+    img.style.position = "absolute";
+    img.style.opacity = 0.2;
+    document.body.appendChild(img);
+    img.src = "resources/apple.jpg";
+}
+</script>
+</body>
+
diff --git a/LayoutTests/compositing/lots-of-img-layers.html b/LayoutTests/compositing/lots-of-img-layers.html
new file mode 100644
index 0000000..f22389e
--- /dev/null
+++ b/LayoutTests/compositing/lots-of-img-layers.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<body style="overflow:hidden">
+<script>
+for (var i=0; i<350; ++i) {
+    var img = document.createElement("img");
+    img.style.webkitTransform = "rotate("+i+"deg) translateZ(0)";
+    img.style.webkitTransformOrigin = "300px 300px";
+    img.style.position = "absolute";
+    document.body.appendChild(img);
+    img.src = "resources/apple.jpg";
+}
+</script>
+</body>
+
diff --git a/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.checksum b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.checksum
new file mode 100644
index 0000000..6bc3769
--- /dev/null
+++ b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.checksum
@@ -0,0 +1 @@
+87fa5eccd988570bd19aaa2505cc8c2d
\ No newline at end of file
diff --git a/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.png b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.png
new file mode 100644
index 0000000..809e653
Binary files /dev/null and b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.png differ
diff --git a/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.txt b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.txt
new file mode 100644
index 0000000..c75f32b
--- /dev/null
+++ b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-expected.txt
@@ -0,0 +1,705 @@
+layer at (0,0) size 800x733
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x8
+  RenderBlock {HTML} at (0,0) size 800x8
+    RenderBody {BODY} at (8,8) size 784x0
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
diff --git a/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.checksum b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.checksum
new file mode 100644
index 0000000..09b3f42
--- /dev/null
+++ b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.checksum
@@ -0,0 +1 @@
+49186f5dccb4d787d4b8e7319c9dde10
\ No newline at end of file
diff --git a/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.png b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.png
new file mode 100644
index 0000000..9d75ba5
Binary files /dev/null and b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.png differ
diff --git a/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.txt b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.txt
new file mode 100644
index 0000000..f027408
--- /dev/null
+++ b/LayoutTests/platform/chromium-gpu-win/compositing/lots-of-img-layers-with-opacity-expected.txt
@@ -0,0 +1,705 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x8
+  RenderBlock {HTML} at (0,0) size 800x8
+    RenderBody {BODY} at (8,8) size 784x0
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
diff --git a/LayoutTests/platform/chromium-gpu/test_expectations.txt b/LayoutTests/platform/chromium-gpu/test_expectations.txt
index 918f591..d52831a 100644
--- a/LayoutTests/platform/chromium-gpu/test_expectations.txt
+++ b/LayoutTests/platform/chromium-gpu/test_expectations.txt
@@ -361,6 +361,11 @@ BUGWK48029 MAC : compositing/tiling/huge-layer-with-layer-children-resize.html =
 BUGWK47243 LINUX : fast/canvas/webgl/uniform-location.html = TIMEOUT TEXT
 BUGWK47243 WIN : fast/canvas/webgl/uniform-location.html = CRASH
 
+// These tests are too slow with our MESA backend.  We can re-enable when we have
+// bots running tests on real hardware.
+BUGWK49629 SKIP : compositing/lots-of-img-layers.html = PASS
+BUGWK49629 SKIP : compositing/lots-of-img-layers-with-opacity.html = PASS
+
 BUG57431 WIN LINUX : fast/canvas/canvas-strokeRect.html = TEXT
 BUG57432 WIN LINUX : fast/canvas/drawImage-with-negative-source-destination.html = TEXT
 BUG58534 WIN LINUX : canvas/philip/tests/2d.composite.globalAlpha.fill.html = TEXT
diff --git a/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.checksum b/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.checksum
new file mode 100644
index 0000000..21594a1
--- /dev/null
+++ b/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.checksum
@@ -0,0 +1 @@
+54b5f5706764ae516d703ec56deb5ed5
\ No newline at end of file
diff --git a/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.png b/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.png
new file mode 100644
index 0000000..f0b2a0a
Binary files /dev/null and b/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.png differ
diff --git a/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.txt b/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.txt
new file mode 100644
index 0000000..c75f32b
--- /dev/null
+++ b/LayoutTests/platform/mac/compositing/lots-of-img-layers-expected.txt
@@ -0,0 +1,705 @@
+layer at (0,0) size 800x733
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x8
+  RenderBlock {HTML} at (0,0) size 800x8
+    RenderBody {BODY} at (8,8) size 784x0
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
diff --git a/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.checksum b/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.checksum
new file mode 100644
index 0000000..4f6ba4a
--- /dev/null
+++ b/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.checksum
@@ -0,0 +1 @@
+95819652f710fd9d5ea67486f5e62357
\ No newline at end of file
diff --git a/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.png b/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.png
new file mode 100644
index 0000000..59501c3
Binary files /dev/null and b/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.png differ
diff --git a/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.txt b/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.txt
new file mode 100644
index 0000000..f027408
--- /dev/null
+++ b/LayoutTests/platform/mac/compositing/lots-of-img-layers-with-opacity-expected.txt
@@ -0,0 +1,705 @@
+layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x8
+  RenderBlock {HTML} at (0,0) size 800x8
+    RenderBody {BODY} at (8,8) size 784x0
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
+layer at (8,8) size 214x232
+  RenderImage {IMG} at (8,8) size 214x232
diff --git a/WebCore/ChangeLog b/WebCore/ChangeLog
index d95caa0..2328a9e 100644
--- a/WebCore/ChangeLog
+++ b/WebCore/ChangeLog
@@ -1,3 +1,107 @@
+2010-11-24  James Robinson  <jamesr at chromium.org>
+
+        Reviewed by Kenneth Russell.
+
+        [chromium] Compositor needs to manage its VRAM use
+        https://bugs.webkit.org/show_bug.cgi?id=49629
+
+        This adds a basic texture manager to the Chromium compositor to limit the amount of VRAM
+        used by compositor textures and switches ContentLayerChromium, ImageLayerChromium, and
+        RenderSurfaceChromium to use managed LayerTexture.  The other *LayerChromium classes (Canvas,
+        Video, and WebGL) and the root layer are still unmanaged.
+
+        The TextureManager works by providing tokens to callers that want to use a managed texture.
+        The token can be used to request a texture, see if the previously requested texture is still
+        available, and to protect/unprotect textures when they cannot be collected.  Whenever a
+        texture is created the manager attempts to free up the least recently used textures until the
+        total memory use is below the provided threshhold.  If the manager cannot satisfy the memory
+        limit it will not return any new textures until some old textures are released.
+
+        A LayerTexture wraps a TextureManager token, size, and format.  A LayerChromium can check if a
+        previously requested texture is still available for use and reserve the LayerTexture's underlying
+        storage between the updateContentsIfDirty() and the draw() call.
+
+        Also changes LayerChromium from having separate contentsDirty()/updateContents() calls to a single
+        updateContentsIfDirty().
+
+        Tests: compositing/lots-of-img-layers-with-opacity.html
+               compositing/lots-of-img-layers.html
+
+        * WebCore.gypi:
+        * platform/graphics/chromium/Canvas2DLayerChromium.cpp:
+        (WebCore::Canvas2DLayerChromium::updateContentsIfDirty):
+        * platform/graphics/chromium/Canvas2DLayerChromium.h:
+        * platform/graphics/chromium/ContentLayerChromium.cpp:
+        (WebCore::ContentLayerChromium::cleanupResources):
+        (WebCore::ContentLayerChromium::updateContentsIfDirty):
+        (WebCore::ContentLayerChromium::updateTextureRect):
+        (WebCore::ContentLayerChromium::draw):
+        * platform/graphics/chromium/ContentLayerChromium.h:
+        * platform/graphics/chromium/ImageLayerChromium.cpp:
+        (WebCore::ImageLayerChromium::updateContentsIfDirty):
+        * platform/graphics/chromium/ImageLayerChromium.h:
+        * platform/graphics/chromium/LayerChromium.h:
+        (WebCore::LayerChromium::updateContentsIfDirty):
+        (WebCore::LayerChromium::draw):
+        * platform/graphics/chromium/LayerRendererChromium.cpp:
+        (WebCore::LayerRendererChromium::LayerRendererChromium):
+        (WebCore::LayerRendererChromium::prepareToDrawLayers):
+        (WebCore::LayerRendererChromium::drawLayers):
+        (WebCore::LayerRendererChromium::updateLayersRecursive):
+        (WebCore::LayerRendererChromium::useRenderSurface):
+        (WebCore::LayerRendererChromium::drawLayer):
+        (WebCore::LayerRendererChromium::initializeSharedObjects):
+        (WebCore::LayerRendererChromium::cleanupSharedObjects):
+        * platform/graphics/chromium/LayerRendererChromium.h:
+        (WebCore::LayerRendererChromium::renderSurfaceSharedValues):
+        (WebCore::LayerRendererChromium::textureManager):
+        * platform/graphics/chromium/LayerTexture.cpp: Added.
+        (WebCore::LayerTexture::LayerTexture):
+        (WebCore::LayerTexture::~LayerTexture):
+        (WebCore::LayerTexture::isValid):
+        (WebCore::LayerTexture::reserve):
+        (WebCore::LayerTexture::unreserve):
+        (WebCore::LayerTexture::bindTexture):
+        (WebCore::LayerTexture::framebufferTexture2D):
+        * platform/graphics/chromium/LayerTexture.h: Added.
+        (WebCore::LayerTexture::create):
+        * platform/graphics/chromium/PluginLayerChromium.cpp:
+        (WebCore::PluginLayerChromium::updateContentsIfDirty):
+        * platform/graphics/chromium/PluginLayerChromium.h:
+        * platform/graphics/chromium/RenderSurfaceChromium.cpp:
+        (WebCore::RenderSurfaceChromium::SharedValues::SharedValues):
+        (WebCore::RenderSurfaceChromium::SharedValues::~SharedValues):
+        (WebCore::RenderSurfaceChromium::RenderSurfaceChromium):
+        (WebCore::RenderSurfaceChromium::cleanupResources):
+        (WebCore::RenderSurfaceChromium::prepareContentsTexture):
+        (WebCore::RenderSurfaceChromium::draw):
+        * platform/graphics/chromium/RenderSurfaceChromium.h:
+        (WebCore::RenderSurfaceChromium::SharedValues::shaderProgram):
+        (WebCore::RenderSurfaceChromium::SharedValues::shaderSamplerLocation):
+        (WebCore::RenderSurfaceChromium::SharedValues::shaderMatrixLocation):
+        (WebCore::RenderSurfaceChromium::SharedValues::shaderAlphaLocation):
+        (WebCore::RenderSurfaceChromium::SharedValues::initialized):
+        * platform/graphics/chromium/TextureManager.cpp: Added.
+        (WebCore::memoryUseBytes):
+        (WebCore::TextureManager::TextureManager):
+        (WebCore::TextureManager::getToken):
+        (WebCore::TextureManager::releaseToken):
+        (WebCore::TextureManager::hasTexture):
+        (WebCore::TextureManager::protectTexture):
+        (WebCore::TextureManager::unprotectTexture):
+        (WebCore::TextureManager::reduceMemoryToLimit):
+        (WebCore::TextureManager::addTexture):
+        (WebCore::TextureManager::removeTexture):
+        (WebCore::TextureManager::requestTexture):
+        * platform/graphics/chromium/TextureManager.h: Added.
+        (WebCore::TextureManager::create):
+        * platform/graphics/chromium/VideoLayerChromium.cpp:
+        (WebCore::VideoLayerChromium::updateContentsIfDirty):
+        * platform/graphics/chromium/VideoLayerChromium.h:
+        * platform/graphics/chromium/WebGLLayerChromium.cpp:
+        (WebCore::WebGLLayerChromium::updateContentsIfDirty):
+        * platform/graphics/chromium/WebGLLayerChromium.h:
+
 2010-11-24  Nicolas Dufresne  <nicolas.dufresne at collabora.co.uk>
 
         Reviewed by Martin Robinson.
diff --git a/WebCore/WebCore.gypi b/WebCore/WebCore.gypi
index 2c817cb..cc553be 100644
--- a/WebCore/WebCore.gypi
+++ b/WebCore/WebCore.gypi
@@ -2485,6 +2485,8 @@
             'platform/graphics/chromium/LayerChromium.h',
             'platform/graphics/chromium/LayerRendererChromium.cpp',
             'platform/graphics/chromium/LayerRendererChromium.h',
+            'platform/graphics/chromium/LayerTexture.cpp',
+            'platform/graphics/chromium/LayerTexture.h',
             'platform/graphics/chromium/MediaPlayerPrivateChromium.h',
             'platform/graphics/chromium/PlatformIcon.h',
             'platform/graphics/chromium/PluginLayerChromium.cpp',
@@ -2493,6 +2495,8 @@
             'platform/graphics/chromium/RenderSurfaceChromium.cpp',
             'platform/graphics/chromium/SimpleFontDataChromiumWin.cpp',
             'platform/graphics/chromium/SimpleFontDataLinux.cpp',
+            'platform/graphics/chromium/TextureManager.cpp',
+            'platform/graphics/chromium/TextureManager.h',
             'platform/graphics/chromium/TransparencyWin.cpp',
             'platform/graphics/chromium/TransparencyWin.h',
             'platform/graphics/chromium/UniscribeHelper.cpp',
diff --git a/WebCore/platform/graphics/chromium/Canvas2DLayerChromium.cpp b/WebCore/platform/graphics/chromium/Canvas2DLayerChromium.cpp
index c2cde19..adf84a9 100644
--- a/WebCore/platform/graphics/chromium/Canvas2DLayerChromium.cpp
+++ b/WebCore/platform/graphics/chromium/Canvas2DLayerChromium.cpp
@@ -56,9 +56,9 @@ Canvas2DLayerChromium::~Canvas2DLayerChromium()
         layerRendererContext()->deleteTexture(m_textureId);
 }
 
-void Canvas2DLayerChromium::updateContents()
+void Canvas2DLayerChromium::updateContentsIfDirty()
 {
-    if (!m_drawingBuffer)
+    if (!m_contentsDirty || !m_drawingBuffer)
         return;
     if (m_textureChanged) { // We have to generate a new backing texture.
         GraphicsContext3D* context = layerRendererContext();
diff --git a/WebCore/platform/graphics/chromium/Canvas2DLayerChromium.h b/WebCore/platform/graphics/chromium/Canvas2DLayerChromium.h
index 0031229..44ef050 100644
--- a/WebCore/platform/graphics/chromium/Canvas2DLayerChromium.h
+++ b/WebCore/platform/graphics/chromium/Canvas2DLayerChromium.h
@@ -46,7 +46,7 @@ public:
     static PassRefPtr<Canvas2DLayerChromium> create(DrawingBuffer*, GraphicsLayerChromium* owner);
     virtual ~Canvas2DLayerChromium();
     virtual bool drawsContent() { return true; }
-    virtual void updateContents();
+    virtual void updateContentsIfDirty();
 
     void setTextureChanged();
     unsigned textureId() const;
diff --git a/WebCore/platform/graphics/chromium/ContentLayerChromium.cpp b/WebCore/platform/graphics/chromium/ContentLayerChromium.cpp
index 375a74b..1cff598 100644
--- a/WebCore/platform/graphics/chromium/ContentLayerChromium.cpp
+++ b/WebCore/platform/graphics/chromium/ContentLayerChromium.cpp
@@ -36,6 +36,7 @@
 
 #include "GraphicsContext3D.h"
 #include "LayerRendererChromium.h"
+#include "LayerTexture.h"
 #include "RenderLayerBacking.h"
 
 #if PLATFORM(SKIA)
@@ -123,12 +124,7 @@ ContentLayerChromium::~ContentLayerChromium()
 void ContentLayerChromium::cleanupResources()
 {
     LayerChromium::cleanupResources();
-    if (layerRenderer()) {
-        if (m_contentsTexture) {
-            layerRenderer()->deleteLayerTexture(m_contentsTexture);
-            m_contentsTexture = 0;
-        }
-    }
+    m_contentsTexture.clear();
 }
 
 bool ContentLayerChromium::requiresClippedUpdateRect() const
@@ -168,7 +164,7 @@ void ContentLayerChromium::calculateClippedUpdateRect(IntRect& dirtyRect, IntRec
     drawRect = layerOriginTransform.mapRect(dirtyRect);
 }
 
-void ContentLayerChromium::updateContents()
+void ContentLayerChromium::updateContentsIfDirty()
 {
     RenderLayerBacking* backing = static_cast<RenderLayerBacking*>(m_owner->client());
     if (!backing || backing->paintingGoesToWindow())
@@ -183,6 +179,7 @@ void ContentLayerChromium::updateContents()
     IntRect updateRect;
     IntSize requiredTextureSize;
     IntSize bitmapSize;
+    IntRect boundsRect(IntPoint(0, 0), m_bounds);
 
     // FIXME: Remove this test when tiled layers are implemented.
     if (requiresClippedUpdateRect()) {
@@ -200,6 +197,11 @@ void ContentLayerChromium::updateContents()
             return;
         }
 
+        // If the texture needs to be reallocated then we must redraw the entire
+        // contents of the layer.
+        if (!m_contentsTexture || !m_contentsTexture->isValid(requiredTextureSize, GraphicsContext3D::RGBA))
+            dirtyRect = boundsRect;
+
         // If the portion of the large layer that's visible hasn't changed
         // then we don't need to update it, _unless_ its contents have changed
         // in which case we only update the dirty bits.
@@ -216,11 +218,10 @@ void ContentLayerChromium::updateContents()
         }
     } else {
         dirtyRect = IntRect(m_dirtyRect);
-        IntRect boundsRect(IntPoint(0, 0), m_bounds);
         requiredTextureSize = m_bounds;
         // If the texture needs to be reallocated then we must redraw the entire
         // contents of the layer.
-        if (requiredTextureSize != m_allocatedTextureSize)
+        if (!m_contentsTexture || !m_contentsTexture->isValid(requiredTextureSize, GraphicsContext3D::RGBA))
             dirtyRect = boundsRect;
         else {
             // Clip the dirtyRect to the size of the layer to avoid drawing
@@ -289,36 +290,28 @@ void ContentLayerChromium::updateContents()
 #error "Need to implement for your platform."
 #endif
 
-    unsigned textureId = m_contentsTexture;
-    if (!textureId)
-        textureId = layerRenderer()->createLayerTexture();
-
     if (pixels)
-        updateTextureRect(pixels, bitmapSize, requiredTextureSize, updateRect, textureId);
+        updateTextureRect(pixels, requiredTextureSize, updateRect);
 }
 
-void ContentLayerChromium::updateTextureRect(void* pixels, const IntSize& bitmapSize, const IntSize& requiredTextureSize, const IntRect& updateRect, unsigned textureId)
+void ContentLayerChromium::updateTextureRect(void* pixels, const IntSize& requiredTextureSize, const IntRect& updateRect)
 {
     if (!pixels)
         return;
 
     GraphicsContext3D* context = layerRendererContext();
-    context->bindTexture(GraphicsContext3D::TEXTURE_2D, textureId);
+    if (!m_contentsTexture)
+        m_contentsTexture = LayerTexture::create(context, layerRenderer()->textureManager());
 
-    // If the texture id or size changed since last time then we need to tell GL
-    // to re-allocate a texture.
-    if (m_contentsTexture != textureId || requiredTextureSize != m_allocatedTextureSize) {
-        ASSERT(bitmapSize == requiredTextureSize);
-        GLC(context, context->texImage2D(GraphicsContext3D::TEXTURE_2D, 0, GraphicsContext3D::RGBA, requiredTextureSize.width(), requiredTextureSize.height(), 0, GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE, pixels));
-
-        m_contentsTexture = textureId;
-        m_allocatedTextureSize = requiredTextureSize;
-    } else {
-        ASSERT(updateRect.width() <= m_allocatedTextureSize.width() && updateRect.height() <= m_allocatedTextureSize.height());
-        ASSERT(updateRect.width() == bitmapSize.width() && updateRect.height() == bitmapSize.height());
-        GLC(context, context->texSubImage2D(GraphicsContext3D::TEXTURE_2D, 0, updateRect.x(), updateRect.y(), updateRect.width(), updateRect.height(), GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE, pixels));
+    if (!m_contentsTexture->reserve(requiredTextureSize, GraphicsContext3D::RGBA)) {
+        m_skipsDraw = true;
+        return;
     }
 
+    m_contentsTexture->bindTexture();
+
+    GLC(context, context->texSubImage2D(GraphicsContext3D::TEXTURE_2D, 0, updateRect.x(), updateRect.y(), updateRect.width(), updateRect.height(), GraphicsContext3D::RGBA, GraphicsContext3D::UNSIGNED_BYTE, pixels));
+
     m_dirtyRect.setSize(FloatSize());
     // Large layers always stay dirty, because they need to update when the content rect changes.
     m_contentsDirty = requiresClippedUpdateRect();
@@ -330,11 +323,12 @@ void ContentLayerChromium::draw()
         return;
 
     ASSERT(layerRenderer());
+
     const ContentLayerChromium::SharedValues* sv = layerRenderer()->contentLayerSharedValues();
     ASSERT(sv && sv->initialized());
     GraphicsContext3D* context = layerRendererContext();
     GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
-    GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_contentsTexture));
+    m_contentsTexture->bindTexture();
     layerRenderer()->useShader(sv->contentShaderProgram());
     GLC(context, context->uniform1i(sv->shaderSamplerLocation(), 0));
 
@@ -352,6 +346,7 @@ void ContentLayerChromium::draw()
                          drawOpacity(), sv->shaderMatrixLocation(),
                          sv->shaderAlphaLocation());
     }
+    m_contentsTexture->unreserve();
 }
 
 }
diff --git a/WebCore/platform/graphics/chromium/ContentLayerChromium.h b/WebCore/platform/graphics/chromium/ContentLayerChromium.h
index 32c2c49..9c180ad 100644
--- a/WebCore/platform/graphics/chromium/ContentLayerChromium.h
+++ b/WebCore/platform/graphics/chromium/ContentLayerChromium.h
@@ -35,9 +35,12 @@
 #if USE(ACCELERATED_COMPOSITING)
 
 #include "LayerChromium.h"
+#include "TextureManager.h"
 
 namespace WebCore {
 
+class LayerTexture;
+
 // A Layer that requires a GraphicsContext to render its contents.
 class ContentLayerChromium : public LayerChromium {
     friend class LayerRendererChromium;
@@ -46,7 +49,7 @@ public:
 
     virtual ~ContentLayerChromium();
 
-    virtual void updateContents();
+    virtual void updateContentsIfDirty();
     virtual void draw();
     virtual bool drawsContent() { return m_owner && m_owner->drawsContent(); }
 
@@ -76,14 +79,12 @@ public:
 protected:
     ContentLayerChromium(GraphicsLayerChromium* owner);
 
-    void updateTextureRect(void* pixels, const IntSize& bitmapSize, const IntSize& requiredTextureSize,
-                           const IntRect& updateRect, unsigned textureId);
+    void updateTextureRect(void* pixels, const IntSize& requiredTextureSize, const IntRect& updateRect);
 
     virtual void cleanupResources();
     bool requiresClippedUpdateRect() const;
 
-    unsigned m_contentsTexture;
-    IntSize m_allocatedTextureSize;
+    OwnPtr<LayerTexture> m_contentsTexture;
     bool m_skipsDraw;
 
 private:
diff --git a/WebCore/platform/graphics/chromium/ImageLayerChromium.cpp b/WebCore/platform/graphics/chromium/ImageLayerChromium.cpp
index adcbb82..cd299c1 100644
--- a/WebCore/platform/graphics/chromium/ImageLayerChromium.cpp
+++ b/WebCore/platform/graphics/chromium/ImageLayerChromium.cpp
@@ -36,6 +36,7 @@
 
 #include "Image.h"
 #include "LayerRendererChromium.h"
+#include "LayerTexture.h"
 
 #if PLATFORM(SKIA)
 #include "NativeImageSkia.h"
@@ -71,7 +72,7 @@ void ImageLayerChromium::setContents(Image* contents)
     setNeedsDisplay();
 }
 
-void ImageLayerChromium::updateContents()
+void ImageLayerChromium::updateContentsIfDirty()
 {
     ASSERT(layerRenderer());
 
@@ -79,12 +80,11 @@ void ImageLayerChromium::updateContents()
     if (requiresClippedUpdateRect()) {
         // Use the base version of updateContents which draws a subset of the
         // image to a bitmap, as the pixel contents can't be uploaded directly.
-        ContentLayerChromium::updateContents();
+        ContentLayerChromium::updateContentsIfDirty();
         return;
     }
 
     void* pixels = 0;
-    IntSize requiredTextureSize;
     IntSize bitmapSize;
 
     NativeImagePtr nativeImage = m_contents->nativeImageForCurrentFrame();
@@ -93,22 +93,33 @@ void ImageLayerChromium::updateContents()
     // The layer contains an Image.
     NativeImageSkia* skiaImage = static_cast<NativeImageSkia*>(nativeImage);
     const SkBitmap* skiaBitmap = skiaImage;
-    requiredTextureSize = IntSize(skiaBitmap->width(), skiaBitmap->height());
+    bitmapSize = IntSize(skiaBitmap->width(), skiaBitmap->height());
     ASSERT(skiaBitmap);
+#elif PLATFORM(CG)
+    // NativeImagePtr is a CGImageRef on Mac OS X.
+    int width = CGImageGetWidth(nativeImage);
+    int height = CGImageGetHeight(nativeImage);
+    bitmapSize = IntSize(width, height);
+#endif
+
+    // Clip the dirty rect to the bitmap dimensions.
+    IntRect dirtyRect(m_dirtyRect);
+    dirtyRect.intersect(IntRect(IntPoint(0, 0), bitmapSize));
+
+    if (!m_contentsTexture || !m_contentsTexture->isValid(bitmapSize, GraphicsContext3D::RGBA))
+        dirtyRect = IntRect(IntPoint(0, 0), bitmapSize);
+    else if (!m_contentsDirty) {
+        m_contentsTexture->reserve(bitmapSize, GraphicsContext3D::RGBA);
+        return;
+    }
 
+#if PLATFORM(SKIA)
     SkAutoLockPixels lock(*skiaBitmap);
     SkBitmap::Config skiaConfig = skiaBitmap->config();
     // FIXME: do we need to support more image configurations?
-    if (skiaConfig == SkBitmap::kARGB_8888_Config) {
+    if (skiaConfig == SkBitmap::kARGB_8888_Config)
         pixels = skiaBitmap->getPixels();
-        bitmapSize = IntSize(skiaBitmap->width(), skiaBitmap->height());
-    }
 #elif PLATFORM(CG)
-    // NativeImagePtr is a CGImageRef on Mac OS X.
-    int width = CGImageGetWidth(nativeImage);
-    int height = CGImageGetHeight(nativeImage);
-    requiredTextureSize = IntSize(width, height);
-    bitmapSize = requiredTextureSize;
     // FIXME: we should get rid of this temporary copy where possible.
     int tempRowBytes = width * 4;
     Vector<uint8_t> tempVector;
@@ -145,16 +156,8 @@ void ImageLayerChromium::updateContents()
 #error "Need to implement for your platform."
 #endif
 
-    unsigned textureId = m_contentsTexture;
-    if (!textureId)
-        textureId = layerRenderer()->createLayerTexture();
-
-    // Clip the dirty rect to the bitmap dimensions.
-    IntRect dirtyRect(m_dirtyRect);
-    dirtyRect.intersect(IntRect(IntPoint(0, 0), bitmapSize));
-
     if (pixels)
-        updateTextureRect(pixels, bitmapSize, requiredTextureSize,  dirtyRect, textureId);
+        updateTextureRect(pixels, bitmapSize,  dirtyRect);
 }
 
 }
diff --git a/WebCore/platform/graphics/chromium/ImageLayerChromium.h b/WebCore/platform/graphics/chromium/ImageLayerChromium.h
index b91f04a..a5c1450 100644
--- a/WebCore/platform/graphics/chromium/ImageLayerChromium.h
+++ b/WebCore/platform/graphics/chromium/ImageLayerChromium.h
@@ -49,7 +49,7 @@ class ImageLayerChromium : public ContentLayerChromium {
 public:
     static PassRefPtr<ImageLayerChromium> create(GraphicsLayerChromium* owner = 0);
 
-    virtual void updateContents();
+    virtual void updateContentsIfDirty();
     virtual bool drawsContent() { return m_contents; }
 
     void setContents(Image* image);
diff --git a/WebCore/platform/graphics/chromium/LayerChromium.h b/WebCore/platform/graphics/chromium/LayerChromium.h
index 86f3580..ac95285 100644
--- a/WebCore/platform/graphics/chromium/LayerChromium.h
+++ b/WebCore/platform/graphics/chromium/LayerChromium.h
@@ -151,15 +151,13 @@ public:
 
     void setOwner(GraphicsLayerChromium* owner) { m_owner = owner; }
 
-    bool contentsDirty() { return m_contentsDirty; }
-
     // Returns the rect containtaining this layer in the current view's coordinate system.
     const IntRect getDrawRect() const;
 
     // These methods typically need to be overwritten by derived classes.
     virtual bool drawsContent() { return false; }
-    virtual void updateContents() { };
-    virtual void draw() { };
+    virtual void updateContentsIfDirty() { }
+    virtual void draw() { }
 
     void drawDebugBorder();
 
@@ -197,6 +195,12 @@ public:
 
     LayerRendererChromium* layerRenderer() const { return m_layerRenderer.get(); }
 
+    static unsigned createShaderProgram(GraphicsContext3D*, const char* vertexShaderSource, const char* fragmentShaderSource);
+
+    static void drawTexturedQuad(GraphicsContext3D*, const TransformationMatrix& projectionMatrix, const TransformationMatrix& layerMatrix,
+                                 float width, float height, float opacity,
+                                 int matrixLocation, int alphaLocation);
+
 protected:
     GraphicsLayerChromium* m_owner;
     LayerChromium(GraphicsLayerChromium* owner);
@@ -211,14 +215,8 @@ protected:
     // Returns true if any of the layer's descendants has content to draw.
     bool descendantsDrawContent();
 
-    static void drawTexturedQuad(GraphicsContext3D*, const TransformationMatrix& projectionMatrix, const TransformationMatrix& layerMatrix,
-                                 float width, float height, float opacity,
-                                 int matrixLocation, int alphaLocation);
-
     static void toGLMatrix(float*, const TransformationMatrix&);
 
-    static unsigned createShaderProgram(GraphicsContext3D*, const char* vertexShaderSource, const char* fragmentShaderSource);
-
     IntSize m_bounds;
     FloatRect m_dirtyRect;
     bool m_contentsDirty;
diff --git a/WebCore/platform/graphics/chromium/LayerRendererChromium.cpp b/WebCore/platform/graphics/chromium/LayerRendererChromium.cpp
index 91580cc..18beea2 100644
--- a/WebCore/platform/graphics/chromium/LayerRendererChromium.cpp
+++ b/WebCore/platform/graphics/chromium/LayerRendererChromium.cpp
@@ -37,7 +37,9 @@
 #include "Canvas2DLayerChromium.h"
 #include "GraphicsContext3D.h"
 #include "LayerChromium.h"
+#include "LayerTexture.h"
 #include "NotImplemented.h"
+#include "TextureManager.h"
 #include "WebGLLayerChromium.h"
 #if PLATFORM(SKIA)
 #include "NativeImageSkia.h"
@@ -48,6 +50,9 @@
 
 namespace WebCore {
 
+// FIXME: Make this limit adjustable and give it a useful value.
+static size_t textureMemoryLimitBytes = 64 * 1024 * 1024;
+
 static TransformationMatrix orthoMatrix(float left, float right, float bottom, float top)
 {
     float deltaX = right - left;
@@ -98,7 +103,6 @@ LayerRendererChromium::LayerRendererChromium(PassRefPtr<GraphicsContext3D> conte
     : m_rootLayerTextureId(0)
     , m_rootLayerTextureWidth(0)
     , m_rootLayerTextureHeight(0)
-    , m_textureLayerShaderProgram(0)
     , m_rootLayer(0)
     , m_scrollPosition(IntPoint(-1, -1))
     , m_currentShader(0)
@@ -244,11 +248,12 @@ void LayerRendererChromium::prepareToDrawLayers(const IntRect& visibleRect, cons
             0.5 * visibleRect.height() + scrollDelta.y(), 0);
         scrolledLayerMatrix.scale3d(1, -1, 1);
 
-        useShader(m_textureLayerShaderProgram);
-        GLC(m_context, m_context->uniform1i(m_textureLayerShaderSamplerLocation, 0));
+        const RenderSurfaceChromium::SharedValues* rsv = renderSurfaceSharedValues();
+        useShader(rsv->shaderProgram());
+        GLC(m_context, m_context->uniform1i(rsv->shaderSamplerLocation(), 0));
         LayerChromium::drawTexturedQuad(m_context.get(), m_projectionMatrix, scrolledLayerMatrix,
                                         visibleRect.width(), visibleRect.height(), 1,
-                                        m_textureLayerShaderMatrixLocation, m_textureLayerShaderAlphaLocation);
+                                        rsv->shaderMatrixLocation(), rsv->shaderAlphaLocation());
 
         GLC(m_context, m_context->copyTexSubImage2D(GraphicsContext3D::TEXTURE_2D, 0, 0, 0, 0, 0, contentRect.width(), contentRect.height()));
     }
@@ -352,18 +357,19 @@ void LayerRendererChromium::drawLayers(const IntRect& visibleRect, const IntRect
         if (!renderSurfaceLayer->m_renderSurface->m_layerList.size())
             continue;
 
-        useRenderSurface(renderSurfaceLayer->m_renderSurface.get());
-        if (renderSurfaceLayer != m_rootLayer) {
-            GLC(m_context, m_context->disable(GraphicsContext3D::SCISSOR_TEST));
-            GLC(m_context, m_context->clearColor(0, 0, 0, 0));
-            GLC(m_context, m_context->clear(GraphicsContext3D::COLOR_BUFFER_BIT));
-            GLC(m_context, m_context->enable(GraphicsContext3D::SCISSOR_TEST));
+        if (useRenderSurface(renderSurfaceLayer->m_renderSurface.get())) {
+            if (renderSurfaceLayer != m_rootLayer) {
+                GLC(m_context, m_context->disable(GraphicsContext3D::SCISSOR_TEST));
+                GLC(m_context, m_context->clearColor(0, 0, 0, 0));
+                GLC(m_context, m_context->clear(GraphicsContext3D::COLOR_BUFFER_BIT));
+                GLC(m_context, m_context->enable(GraphicsContext3D::SCISSOR_TEST));
+            }
+
+            Vector<LayerChromium*>& layerList = renderSurfaceLayer->m_renderSurface->m_layerList;
+            ASSERT(layerList.size());
+            for (unsigned layerIndex = 0; layerIndex < layerList.size(); ++layerIndex)
+                drawLayer(layerList[layerIndex], renderSurfaceLayer->m_renderSurface.get());
         }
-
-        Vector<LayerChromium*>& layerList = renderSurfaceLayer->m_renderSurface->m_layerList;
-        ASSERT(layerList.size());
-        for (unsigned layerIndex = 0; layerIndex < layerList.size(); ++layerIndex)
-            drawLayer(layerList[layerIndex], renderSurfaceLayer->m_renderSurface.get());
     }
 
     GLC(m_context, m_context->disable(GraphicsContext3D::SCISSOR_TEST));
@@ -507,7 +513,7 @@ void LayerRendererChromium::updateLayersRecursive(LayerChromium* layer, const Tr
         // Layer's opacity will be applied when drawing the render surface.
         renderSurface->m_drawOpacity = layer->opacity();
         if (layer->superlayer()->preserves3D())
-            renderSurface->m_drawOpacity *= layer->superlayer()->m_drawOpacity;
+            renderSurface->m_drawOpacity *= layer->superlayer()->drawOpacity();
         layer->m_drawOpacity = 1;
 
         TransformationMatrix layerOriginTransform = combinedTransform;
@@ -598,7 +604,7 @@ void LayerRendererChromium::updateLayersRecursive(LayerChromium* layer, const Tr
 
         if (sublayer->m_renderSurface) {
             RenderSurfaceChromium* sublayerRenderSurface = sublayer->m_renderSurface.get();
-            const IntRect& contentRect = sublayerRenderSurface->m_contentRect;
+            const IntRect& contentRect = sublayerRenderSurface->contentRect();
             FloatRect sublayerRect(-0.5 * contentRect.width(), -0.5 * contentRect.height(),
                                    contentRect.width(), contentRect.height());
             layer->m_drawableContentRect.unite(enclosingIntRect(sublayerRenderSurface->m_drawTransform.mapRect(sublayerRect)));
@@ -671,10 +677,10 @@ bool LayerRendererChromium::useRenderSurface(RenderSurfaceChromium* renderSurfac
 
     GLC(m_context, m_context->bindFramebuffer(GraphicsContext3D::FRAMEBUFFER, m_offscreenFramebufferId));
 
-    renderSurface->prepareContentsTexture();
+    if (!renderSurface->prepareContentsTexture())
+        return false;
 
-    GLC(m_context, m_context->framebufferTexture2D(GraphicsContext3D::FRAMEBUFFER, GraphicsContext3D::COLOR_ATTACHMENT0,
-                                                   GraphicsContext3D::TEXTURE_2D, renderSurface->m_contentsTextureId, 0));
+    renderSurface->m_contentsTexture->framebufferTexture2D();
 
 #if !defined ( NDEBUG )
     if (m_context->checkFramebufferStatus(GraphicsContext3D::FRAMEBUFFER) != GraphicsContext3D::FRAMEBUFFER_COMPLETE) {
@@ -690,15 +696,7 @@ bool LayerRendererChromium::useRenderSurface(RenderSurfaceChromium* renderSurfac
 void LayerRendererChromium::drawLayer(LayerChromium* layer, RenderSurfaceChromium* targetSurface)
 {
     if (layer->m_renderSurface && layer->m_renderSurface != targetSurface) {
-        GLC(m_context, m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, layer->m_renderSurface->m_contentsTextureId));
-        useShader(m_textureLayerShaderProgram);
-
-        setScissorToRect(layer->m_renderSurface->m_scissorRect);
-
-        IntRect contentRect = layer->m_renderSurface->m_contentRect;
-        LayerChromium::drawTexturedQuad(m_context.get(), m_projectionMatrix, layer->m_renderSurface->m_drawTransform,
-                                        contentRect.width(), contentRect.height(), layer->m_renderSurface->m_drawOpacity,
-                                        m_textureLayerShaderMatrixLocation, m_textureLayerShaderAlphaLocation);
+        layer->m_renderSurface->draw();
         return;
     }
 
@@ -721,12 +719,8 @@ void LayerRendererChromium::drawLayer(LayerChromium* layer, RenderSurfaceChromiu
 
     if (layer->drawsContent()) {
         // Update the contents of the layer if necessary.
-        if (layer->contentsDirty()) {
-            // Update the backing texture contents for any dirty portion of the layer.
-            layer->updateContents();
-            m_context->makeContextCurrent();
-        }
-
+        layer->updateContentsIfDirty();
+        m_context->makeContextCurrent();
         layer->draw();
     }
 
@@ -789,46 +783,6 @@ bool LayerRendererChromium::initializeSharedObjects()
 {
     makeContextCurrent();
 
-    // The following program composites layers whose contents are the results of a previous
-    // render operation and therefore doesn't perform any color swizzling. It is used
-    // in scrolling and for compositing offscreen textures.
-    char textureLayerVertexShaderString[] =
-        "attribute vec4 a_position;   \n"
-        "attribute vec2 a_texCoord;   \n"
-        "uniform mat4 matrix;         \n"
-        "varying vec2 v_texCoord;     \n"
-        "void main()                  \n"
-        "{                            \n"
-        "  gl_Position = matrix * a_position; \n"
-        "  v_texCoord = a_texCoord;   \n"
-        "}                            \n";
-    char textureLayerFragmentShaderString[] =
-        "precision mediump float;                            \n"
-        "varying vec2 v_texCoord;                            \n"
-        "uniform sampler2D s_texture;                        \n"
-        "uniform float alpha;                                \n"
-        "void main()                                         \n"
-        "{                                                   \n"
-        "  vec4 texColor = texture2D(s_texture, v_texCoord); \n"
-        "  gl_FragColor = vec4(texColor.x, texColor.y, texColor.z, texColor.w) * alpha; \n"
-        "}                                                   \n";
-
-    m_textureLayerShaderProgram = LayerChromium::createShaderProgram(m_context.get(), textureLayerVertexShaderString, textureLayerFragmentShaderString);
-    if (!m_textureLayerShaderProgram) {
-        LOG_ERROR("LayerRendererChromium: Failed to create scroll shader program");
-        cleanupSharedObjects();
-        return false;
-    }
-
-    GLC(m_context, m_textureLayerShaderSamplerLocation = m_context->getUniformLocation(m_textureLayerShaderProgram, "s_texture"));
-    GLC(m_context, m_textureLayerShaderMatrixLocation = m_context->getUniformLocation(m_textureLayerShaderProgram, "matrix"));
-    GLC(m_context, m_textureLayerShaderAlphaLocation = m_context->getUniformLocation(m_textureLayerShaderProgram, "alpha"));
-    if (m_textureLayerShaderSamplerLocation == -1 || m_textureLayerShaderMatrixLocation == -1 || m_textureLayerShaderAlphaLocation == -1) {
-        LOG_ERROR("Failed to initialize texture layer shader.");
-        cleanupSharedObjects();
-        return false;
-    }
-
     // Create a texture object to hold the contents of the root layer.
     m_rootLayerTextureId = createLayerTexture();
     if (!m_rootLayerTextureId) {
@@ -853,13 +807,15 @@ bool LayerRendererChromium::initializeSharedObjects()
     m_canvasLayerSharedValues = adoptPtr(new CanvasLayerChromium::SharedValues(m_context.get()));
     m_videoLayerSharedValues = adoptPtr(new VideoLayerChromium::SharedValues(m_context.get()));
     m_pluginLayerSharedValues = adoptPtr(new PluginLayerChromium::SharedValues(m_context.get()));
+    m_renderSurfaceSharedValues = adoptPtr(new RenderSurfaceChromium::SharedValues(m_context.get()));
 
     if (!m_layerSharedValues->initialized() || !m_contentLayerSharedValues->initialized() || !m_canvasLayerSharedValues->initialized()
-        || !m_videoLayerSharedValues->initialized() || !m_pluginLayerSharedValues->initialized()) {
+        || !m_videoLayerSharedValues->initialized() || !m_pluginLayerSharedValues->initialized() || !m_renderSurfaceSharedValues->initialized()) {
         cleanupSharedObjects();
         return false;
     }
 
+    m_textureManager = TextureManager::create(m_context.get(), textureMemoryLimitBytes, m_maxTextureSize);
     return true;
 }
 
@@ -872,11 +828,7 @@ void LayerRendererChromium::cleanupSharedObjects()
     m_canvasLayerSharedValues.clear();
     m_videoLayerSharedValues.clear();
     m_pluginLayerSharedValues.clear();
-
-    if (m_textureLayerShaderProgram) {
-        GLC(m_context, m_context->deleteProgram(m_textureLayerShaderProgram));
-        m_textureLayerShaderProgram = 0;
-    }
+    m_renderSurfaceSharedValues.clear();
 
     if (m_rootLayerTextureId) {
         deleteLayerTexture(m_rootLayerTextureId);
@@ -885,6 +837,8 @@ void LayerRendererChromium::cleanupSharedObjects()
 
     if (m_offscreenFramebufferId)
         GLC(m_context, m_context->deleteFramebuffer(m_offscreenFramebufferId));
+
+    m_textureManager.clear();
 }
 
 } // namespace WebCore
diff --git a/WebCore/platform/graphics/chromium/LayerRendererChromium.h b/WebCore/platform/graphics/chromium/LayerRendererChromium.h
index 531d652..c0e610a 100644
--- a/WebCore/platform/graphics/chromium/LayerRendererChromium.h
+++ b/WebCore/platform/graphics/chromium/LayerRendererChromium.h
@@ -108,6 +108,7 @@ public:
     const CanvasLayerChromium::SharedValues* canvasLayerSharedValues() const { return m_canvasLayerSharedValues.get(); }
     const VideoLayerChromium::SharedValues* videoLayerSharedValues() const { return m_videoLayerSharedValues.get(); }
     const PluginLayerChromium::SharedValues* pluginLayerSharedValues() const { return m_pluginLayerSharedValues.get(); }
+    const RenderSurfaceChromium::SharedValues* renderSurfaceSharedValues() const { return m_renderSurfaceSharedValues.get(); }
 
     void resizeOnscreenContent(const IntSize&);
 
@@ -115,6 +116,10 @@ public:
     IntRect rootLayerContentRect() const { return m_rootContentRect; }
     void getFramebufferPixels(void *pixels, const IntRect& rect);
 
+    TextureManager* textureManager() const { return m_textureManager.get(); }
+
+    void setScissorToRect(const IntRect&);
+
 private:
     explicit LayerRendererChromium(PassRefPtr<GraphicsContext3D> graphicsContext3D);
     void updateLayersRecursive(LayerChromium* layer, const TransformationMatrix& parentMatrix, Vector<LayerChromium*>& renderSurfaceLayerList, Vector<LayerChromium*>& layerList);
@@ -123,8 +128,6 @@ private:
 
     bool isLayerVisible(LayerChromium*, const TransformationMatrix&, const IntRect& visibleRect);
 
-    void setScissorToRect(const IntRect&);
-
     void setDrawViewportRect(const IntRect&, bool flipY);
 
     bool useRenderSurface(RenderSurfaceChromium*);
@@ -140,13 +143,6 @@ private:
     int m_rootLayerTextureWidth;
     int m_rootLayerTextureHeight;
 
-    // Shader uniform locations used by layers whose contents are the results of a
-    // previous rendering operation.
-    unsigned m_textureLayerShaderProgram;
-    int m_textureLayerShaderSamplerLocation;
-    int m_textureLayerShaderMatrixLocation;
-    int m_textureLayerShaderAlphaLocation;
-
     TransformationMatrix m_projectionMatrix;
 
     RefPtr<LayerChromium> m_rootLayer;
@@ -186,6 +182,9 @@ private:
     OwnPtr<CanvasLayerChromium::SharedValues> m_canvasLayerSharedValues;
     OwnPtr<VideoLayerChromium::SharedValues> m_videoLayerSharedValues;
     OwnPtr<PluginLayerChromium::SharedValues> m_pluginLayerSharedValues;
+    OwnPtr<RenderSurfaceChromium::SharedValues> m_renderSurfaceSharedValues;
+
+    OwnPtr<TextureManager> m_textureManager;
 
     RefPtr<GraphicsContext3D> m_context;
 
diff --git a/WebCore/platform/graphics/chromium/LayerTexture.cpp b/WebCore/platform/graphics/chromium/LayerTexture.cpp
new file mode 100644
index 0000000..32bfa0b
--- /dev/null
+++ b/WebCore/platform/graphics/chromium/LayerTexture.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2010, Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "LayerTexture.h"
+
+#include "GraphicsContext3D.h"
+#include "TextureManager.h"
+
+namespace WebCore {
+
+LayerTexture::LayerTexture(GraphicsContext3D* context, TextureManager* manager)
+    : m_context(context)
+    , m_textureManager(manager)
+    , m_token(0)
+    , m_format(0)
+    , m_textureId(0)
+{
+}
+
+LayerTexture::~LayerTexture()
+{
+    if (m_token)
+        m_textureManager->releaseToken(m_token);
+}
+
+bool LayerTexture::isValid(const IntSize& size, unsigned format)
+{
+    return m_token && size == m_size && format == m_format && m_textureManager->hasTexture(m_token);
+}
+
+bool LayerTexture::reserve(const IntSize& size, unsigned format)
+{
+    if (!m_token)
+        m_token = m_textureManager->getToken();
+
+    if (size == m_size && format == m_format && m_textureManager->hasTexture(m_token))
+        m_textureManager->protectTexture(m_token);
+    else {
+        m_textureId = m_textureManager->requestTexture(m_token, size, format);
+        if (m_textureId) {
+            m_size = size;
+            m_format = format;
+        }
+    }
+
+    return m_textureId;
+}
+
+void LayerTexture::unreserve()
+{
+    if (m_token)
+        m_textureManager->unprotectTexture(m_token);
+}
+
+void LayerTexture::bindTexture()
+{
+    m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textureId);
+}
+
+void LayerTexture::framebufferTexture2D()
+{
+    m_context->framebufferTexture2D(GraphicsContext3D::FRAMEBUFFER, GraphicsContext3D::COLOR_ATTACHMENT0, GraphicsContext3D::TEXTURE_2D, m_textureId, 0);
+}
+
+}
+
+#endif // USE(ACCELERATED_COMPOSITING)
+
diff --git a/WebCore/platform/graphics/chromium/LayerTexture.h b/WebCore/platform/graphics/chromium/LayerTexture.h
new file mode 100644
index 0000000..312adfa
--- /dev/null
+++ b/WebCore/platform/graphics/chromium/LayerTexture.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2010, Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef LayerTexture_h
+#define LayerTexture_h
+
+#include "IntSize.h"
+#include "TextureManager.h"
+
+#include <wtf/Noncopyable.h>
+#include <wtf/PassOwnPtr.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+
+class GraphicsContext3D;
+class TextureManager;
+
+class LayerTexture : public Noncopyable {
+public:
+    static PassOwnPtr<LayerTexture> create(GraphicsContext3D* context, TextureManager* manager)
+    {
+        return adoptPtr(new LayerTexture(context, manager));
+    }
+    ~LayerTexture();
+
+    bool isValid(const IntSize&, unsigned format);
+    bool reserve(const IntSize&, unsigned format);
+    void unreserve();
+
+    void bindTexture();
+    void framebufferTexture2D();
+
+private:
+    LayerTexture(GraphicsContext3D*, TextureManager*);
+
+    RefPtr<GraphicsContext3D> m_context;
+    TextureManager* m_textureManager;
+    TextureToken m_token;
+    IntSize m_size;
+    unsigned m_format;
+    unsigned m_textureId;
+};
+
+}
+
+#endif
+
diff --git a/WebCore/platform/graphics/chromium/PluginLayerChromium.cpp b/WebCore/platform/graphics/chromium/PluginLayerChromium.cpp
index 2d1852f..878c142 100644
--- a/WebCore/platform/graphics/chromium/PluginLayerChromium.cpp
+++ b/WebCore/platform/graphics/chromium/PluginLayerChromium.cpp
@@ -102,7 +102,7 @@ void PluginLayerChromium::setTextureId(unsigned id)
     m_textureId = id;
 }
 
-void PluginLayerChromium::updateContents()
+void PluginLayerChromium::updateContentsIfDirty()
 {
 }
 
diff --git a/WebCore/platform/graphics/chromium/PluginLayerChromium.h b/WebCore/platform/graphics/chromium/PluginLayerChromium.h
index 44a6cc9..853b328 100644
--- a/WebCore/platform/graphics/chromium/PluginLayerChromium.h
+++ b/WebCore/platform/graphics/chromium/PluginLayerChromium.h
@@ -38,7 +38,7 @@ class PluginLayerChromium : public LayerChromium {
 public:
     static PassRefPtr<PluginLayerChromium> create(GraphicsLayerChromium* owner = 0);
     virtual bool drawsContent() { return true; }
-    virtual void updateContents();
+    virtual void updateContentsIfDirty();
     virtual void draw();
     
     void setTextureId(unsigned textureId);
diff --git a/WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp b/WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp
index 816fd3d..e9fdf01 100644
--- a/WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp
+++ b/WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp
@@ -31,12 +31,67 @@
 
 #include "GraphicsContext3D.h"
 #include "LayerRendererChromium.h"
+#include "LayerTexture.h"
 
 namespace WebCore {
 
+RenderSurfaceChromium::SharedValues::SharedValues(GraphicsContext3D* context)
+    : m_context(context)
+    , m_shaderProgram(0)
+    , m_shaderSamplerLocation(-1)
+    , m_shaderMatrixLocation(-1)
+    , m_shaderAlphaLocation(-1)
+    , m_initialized(false)
+{
+    // The following program composites layers whose contents are the results of a previous
+    // render operation and therefore doesn't perform any color swizzling. It is used
+    // in scrolling and for compositing offscreen textures.
+    char renderSurfaceVertexShaderString[] =
+        "attribute vec4 a_position;   \n"
+        "attribute vec2 a_texCoord;   \n"
+        "uniform mat4 matrix;         \n"
+        "varying vec2 v_texCoord;     \n"
+        "void main()                  \n"
+        "{                            \n"
+        "  gl_Position = matrix * a_position; \n"
+        "  v_texCoord = a_texCoord;   \n"
+        "}                            \n";
+    char renderSurfaceFragmentShaderString[] =
+        "precision mediump float;                            \n"
+        "varying vec2 v_texCoord;                            \n"
+        "uniform sampler2D s_texture;                        \n"
+        "uniform float alpha;                                \n"
+        "void main()                                         \n"
+        "{                                                   \n"
+        "  vec4 texColor = texture2D(s_texture, v_texCoord); \n"
+        "  gl_FragColor = vec4(texColor.x, texColor.y, texColor.z, texColor.w) * alpha; \n"
+        "}                                                   \n";
+
+    m_shaderProgram = LayerChromium::createShaderProgram(m_context, renderSurfaceVertexShaderString, renderSurfaceFragmentShaderString);
+    if (!m_shaderProgram) {
+        LOG_ERROR("RenderSurfaceChromium: Failed to create shader program");
+        return;
+    }
+
+    GLC(m_context, m_shaderSamplerLocation = m_context->getUniformLocation(m_shaderProgram, "s_texture"));
+    GLC(m_context, m_shaderMatrixLocation = m_context->getUniformLocation(m_shaderProgram, "matrix"));
+    GLC(m_context, m_shaderAlphaLocation = m_context->getUniformLocation(m_shaderProgram, "alpha"));
+    if (m_shaderSamplerLocation == -1 || m_shaderMatrixLocation == -1 || m_shaderAlphaLocation == -1) {
+        LOG_ERROR("Failed to initialize texture layer shader.");
+        return;
+    }
+    m_initialized = true;
+}
+
+RenderSurfaceChromium::SharedValues::~SharedValues()
+{
+    if (m_shaderProgram)
+        GLC(m_context, m_context->deleteProgram(m_shaderProgram));
+}
+
 RenderSurfaceChromium::RenderSurfaceChromium(LayerChromium* owningLayer)
     : m_owningLayer(owningLayer)
-    , m_contentsTextureId(0)
+    , m_skipsDraw(false)
 {
 }
 
@@ -47,14 +102,12 @@ RenderSurfaceChromium::~RenderSurfaceChromium()
 
 void RenderSurfaceChromium::cleanupResources()
 {
-    if (!m_contentsTextureId)
+    if (!m_contentsTexture)
         return;
 
     ASSERT(layerRenderer());
 
-    layerRenderer()->deleteLayerTexture(m_contentsTextureId);
-    m_contentsTextureId = 0;
-    m_allocatedTextureSize = IntSize();
+    m_contentsTexture.clear();
 }
 
 LayerRendererChromium* RenderSurfaceChromium::layerRenderer()
@@ -63,25 +116,41 @@ LayerRendererChromium* RenderSurfaceChromium::layerRenderer()
     return m_owningLayer->layerRenderer();
 }
 
-void RenderSurfaceChromium::prepareContentsTexture()
+bool RenderSurfaceChromium::prepareContentsTexture()
 {
-    ASSERT(m_owningLayer);
+    IntSize requiredSize(m_contentRect.size());
+    TextureManager* textureManager = layerRenderer()->textureManager();
 
-    if (!m_contentsTextureId) {
-        m_contentsTextureId = layerRenderer()->createLayerTexture();
-        ASSERT(m_contentsTextureId);
-        m_allocatedTextureSize = IntSize();
-    }
+    if (!m_contentsTexture)
+        m_contentsTexture = LayerTexture::create(layerRenderer()->context(), textureManager);
 
-    IntSize requiredSize(m_contentRect.width(), m_contentRect.height());
-    if (m_allocatedTextureSize != requiredSize) {
-        GraphicsContext3D* context = m_owningLayer->layerRenderer()->context();
-        GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_contentsTextureId));
-        GLC(context, context->texImage2D(GraphicsContext3D::TEXTURE_2D, 0, GraphicsContext3D::RGBA,
-                                             requiredSize.width(), requiredSize.height(), 0, GraphicsContext3D::RGBA,
-                                             GraphicsContext3D::UNSIGNED_BYTE, 0));
-        m_allocatedTextureSize = requiredSize;
+    if (!m_contentsTexture->reserve(requiredSize, GraphicsContext3D::RGBA)) {
+        m_skipsDraw = true;
+        return false;
     }
+
+    m_skipsDraw = false;
+    return true;
+}
+
+void RenderSurfaceChromium::draw()
+{
+    if (m_skipsDraw)
+        return;
+
+    m_contentsTexture->bindTexture();
+
+    const RenderSurfaceChromium::SharedValues* sv = layerRenderer()->renderSurfaceSharedValues();
+    ASSERT(sv && sv->initialized());
+
+    layerRenderer()->useShader(sv->shaderProgram());
+    layerRenderer()->setScissorToRect(m_scissorRect);
+
+    LayerChromium::drawTexturedQuad(layerRenderer()->context(), layerRenderer()->projectionMatrix(), m_drawTransform,
+                                    m_contentRect.width(), m_contentRect.height(), m_drawOpacity,
+                                    sv->shaderMatrixLocation(), sv->shaderAlphaLocation());
+
+    m_contentsTexture->unreserve();
 }
 
 }
diff --git a/WebCore/platform/graphics/chromium/RenderSurfaceChromium.h b/WebCore/platform/graphics/chromium/RenderSurfaceChromium.h
index 1f33527..a93218f 100644
--- a/WebCore/platform/graphics/chromium/RenderSurfaceChromium.h
+++ b/WebCore/platform/graphics/chromium/RenderSurfaceChromium.h
@@ -31,13 +31,15 @@
 
 #include "FloatRect.h"
 #include "IntRect.h"
+#include "TextureManager.h"
 #include "TransformationMatrix.h"
 #include <wtf/Noncopyable.h>
 
 namespace WebCore {
 
-class LayerRendererChromium;
 class LayerChromium;
+class LayerRendererChromium;
+class LayerTexture;
 
 class RenderSurfaceChromium : public Noncopyable {
     friend class LayerRendererChromium;
@@ -45,20 +47,45 @@ public:
     explicit RenderSurfaceChromium(LayerChromium*);
     ~RenderSurfaceChromium();
 
-    void prepareContentsTexture();
+    bool prepareContentsTexture();
     void cleanupResources();
+    void draw();
 
     FloatPoint contentRectCenter() const { return FloatRect(m_contentRect).center(); }
     IntRect contentRect() const { return m_contentRect; }
 
+    // Stores values that are shared between instances of this class that are
+    // associated with the same LayerRendererChromium (and hence the same GL
+    // context).
+    class SharedValues {
+    public:
+        explicit SharedValues(GraphicsContext3D*);
+        ~SharedValues();
+
+        unsigned shaderProgram() const { return m_shaderProgram; }
+        int shaderSamplerLocation() const { return m_shaderSamplerLocation; }
+        int shaderMatrixLocation() const { return m_shaderMatrixLocation; }
+        int shaderAlphaLocation() const { return m_shaderAlphaLocation; }
+        bool initialized() const { return m_initialized; }
+
+    private:
+        GraphicsContext3D* m_context;
+
+        unsigned m_shaderProgram;
+        int m_shaderSamplerLocation;
+        int m_shaderMatrixLocation;
+        int m_shaderAlphaLocation;
+        bool m_initialized;
+    };
+
 private:
     LayerRendererChromium* layerRenderer();
 
     LayerChromium* m_owningLayer;
     IntRect m_contentRect;
-    unsigned m_contentsTextureId;
+    bool m_skipsDraw;
+    OwnPtr<LayerTexture> m_contentsTexture;
     float m_drawOpacity;
-    IntSize m_allocatedTextureSize;
     TransformationMatrix m_drawTransform;
     TransformationMatrix m_originTransform;
     IntRect m_scissorRect;
diff --git a/WebCore/platform/graphics/chromium/TextureManager.cpp b/WebCore/platform/graphics/chromium/TextureManager.cpp
new file mode 100644
index 0000000..d786481
--- /dev/null
+++ b/WebCore/platform/graphics/chromium/TextureManager.cpp
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2010, Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "TextureManager.h"
+
+#include "LayerRendererChromium.h"
+
+namespace WebCore {
+
+static size_t memoryUseBytes(IntSize size, unsigned textureFormat)
+{
+    // FIXME: This assumes all textures are 4 bytes/pixel, like RGBA.
+    return size.width() * size.height() * 4;
+}
+
+TextureManager::TextureManager(GraphicsContext3D* context, size_t memoryLimitBytes, int maxTextureSize)
+    : m_context(context)
+    , m_memoryLimitBytes(memoryLimitBytes)
+    , m_memoryUseBytes(0)
+    , m_maxTextureSize(maxTextureSize)
+    , m_nextToken(1)
+{
+}
+
+TextureToken TextureManager::getToken()
+{
+    return m_nextToken++;
+}
+
+void TextureManager::releaseToken(TextureToken token)
+{
+    TextureMap::iterator it = m_textures.find(token);
+    if (it != m_textures.end())
+        removeTexture(token, it->second);
+}
+
+bool TextureManager::hasTexture(TextureToken token)
+{
+    if (m_textures.contains(token)) {
+        // If someone asks about a texture put it at the end of the LRU list.
+        m_textureLRUSet.remove(token);
+        m_textureLRUSet.add(token);
+        return true;
+    }
+    return false;
+}
+
+void TextureManager::protectTexture(TextureToken token)
+{
+    ASSERT(hasTexture(token));
+    ASSERT(!m_textures.get(token).isProtected);
+    TextureInfo info = m_textures.take(token);
+    info.isProtected = true;
+    m_textures.add(token, info);
+}
+
+void TextureManager::unprotectTexture(TextureToken token)
+{
+    TextureMap::iterator it = m_textures.find(token);
+    if (it != m_textures.end()) {
+        TextureInfo info = it->second;
+        if (info.isProtected) {
+            info.isProtected = false;
+            m_textures.remove(it);
+            m_textures.add(token, info);
+        }
+    }
+}
+
+bool TextureManager::reduceMemoryToLimit(size_t limit)
+{
+    while (m_memoryUseBytes > limit) {
+        ASSERT(!m_textureLRUSet.isEmpty());
+        bool foundCandidate = false;
+        for (ListHashSet<TextureToken>::iterator lruIt = m_textureLRUSet.begin(); lruIt != m_textureLRUSet.end(); ++lruIt) {
+            TextureToken token = *lruIt;
+            TextureInfo info = m_textures.get(token);
+            if (info.isProtected)
+                continue;
+            removeTexture(token, info);
+            foundCandidate = true;
+            break;
+        }
+        if (!foundCandidate)
+            return false;
+    }
+    return true;
+}
+
+void TextureManager::addTexture(TextureToken token, TextureInfo info)
+{
+    ASSERT(!m_textureLRUSet.contains(token));
+    ASSERT(!m_textures.contains(token));
+    m_memoryUseBytes += memoryUseBytes(info.size, info.format);
+    m_textures.set(token, info);
+    m_textureLRUSet.add(token);
+}
+
+void TextureManager::removeTexture(TextureToken token, TextureInfo info)
+{
+    ASSERT(m_textureLRUSet.contains(token));
+    ASSERT(m_textures.contains(token));
+    m_memoryUseBytes -= memoryUseBytes(info.size, info.format);
+    m_textures.remove(token);
+    ASSERT(m_textureLRUSet.contains(token));
+    m_textureLRUSet.remove(token);
+    GLC(m_context, m_context->deleteTexture(info.textureId));
+}
+
+unsigned TextureManager::requestTexture(TextureToken token, IntSize size, unsigned format, bool* newTexture)
+{
+    if (size.width() > m_maxTextureSize || size.height() > m_maxTextureSize)
+        return 0;
+
+    TextureMap::iterator it = m_textures.find(token);
+    if (it != m_textures.end()) {
+        ASSERT(it->second.size != size || it->second.format != format);
+        removeTexture(token, it->second);
+    }
+
+    size_t memoryRequiredBytes = memoryUseBytes(size, format);
+    if (memoryRequiredBytes > m_memoryLimitBytes || !reduceMemoryToLimit(m_memoryLimitBytes - memoryRequiredBytes))
+        return 0;
+
+    unsigned textureId = m_context->createTexture();
+    GLC(m_context, textureId = m_context->createTexture());
+    GLC(m_context, m_context->bindTexture(GraphicsContext3D::TEXTURE_2D, textureId));
+    // Do basic linear filtering on resize.
+    GLC(m_context, m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR));
+    GLC(m_context, m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR));
+    // NPOT textures in GL ES only work when the wrap mode is set to GraphicsContext3D::CLAMP_TO_EDGE.
+    GLC(m_context, m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE));
+    GLC(m_context, m_context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE));
+    GLC(m_context, m_context->texImage2D(GraphicsContext3D::TEXTURE_2D, 0, format, size.width(), size.height(), 0, format, GraphicsContext3D::UNSIGNED_BYTE, 0));
+    TextureInfo info;
+    info.size = size;
+    info.format = format;
+    info.textureId = textureId;
+    info.isProtected = true;
+    addTexture(token, info);
+    return textureId;
+}
+
+}
+
+#endif // USE(ACCELERATED_COMPOSITING)
diff --git a/WebCore/platform/graphics/chromium/TextureManager.h b/WebCore/platform/graphics/chromium/TextureManager.h
new file mode 100644
index 0000000..1e850cd
--- /dev/null
+++ b/WebCore/platform/graphics/chromium/TextureManager.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2010, Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TextureManager_h
+#define TextureManager_h
+
+#include "GraphicsContext3D.h"
+#include "IntRect.h"
+#include "IntSize.h"
+
+#include <wtf/HashMap.h>
+#include <wtf/ListHashSet.h>
+
+namespace WebCore {
+
+typedef int TextureToken;
+
+class TextureManager : public Noncopyable {
+public:
+    static PassOwnPtr<TextureManager> create(GraphicsContext3D* context, size_t memoryLimitBytes, int maxTextureSize)
+    {
+        return adoptPtr(new TextureManager(context, memoryLimitBytes, maxTextureSize));
+    }
+
+    TextureToken getToken();
+    void releaseToken(TextureToken);
+    bool hasTexture(TextureToken);
+
+    unsigned requestTexture(TextureToken, IntSize, unsigned textureFormat, bool* newTexture = 0);
+
+    void protectTexture(TextureToken);
+    void unprotectTexture(TextureToken);
+
+private:
+    TextureManager(GraphicsContext3D*, size_t memoryLimitBytes, int maxTextureSize);
+
+    struct TextureInfo {
+        IntSize size;
+        unsigned format;
+        unsigned textureId;
+        bool isProtected;
+    };
+
+    bool reduceMemoryToLimit(size_t);
+    void addTexture(TextureToken, TextureInfo);
+    void removeTexture(TextureToken, TextureInfo);
+
+    RefPtr<GraphicsContext3D> m_context;
+
+    typedef HashMap<TextureToken, TextureInfo> TextureMap;
+    TextureMap m_textures;
+    ListHashSet<TextureToken> m_textureLRUSet;
+
+    size_t m_memoryLimitBytes;
+    size_t m_memoryUseBytes;
+    int m_maxTextureSize;
+    TextureToken m_nextToken;
+};
+
+}
+
+#endif
diff --git a/WebCore/platform/graphics/chromium/VideoLayerChromium.cpp b/WebCore/platform/graphics/chromium/VideoLayerChromium.cpp
index feb7ebc..d6bd871 100644
--- a/WebCore/platform/graphics/chromium/VideoLayerChromium.cpp
+++ b/WebCore/platform/graphics/chromium/VideoLayerChromium.cpp
@@ -200,8 +200,11 @@ void VideoLayerChromium::cleanupResources()
     }
 }
 
-void VideoLayerChromium::updateContents()
+void VideoLayerChromium::updateContentsIfDirty()
 {
+    if (!m_contentsDirty)
+        return;
+
     RenderLayerBacking* backing = static_cast<RenderLayerBacking*>(m_owner->client());
     if (!backing || backing->paintingGoesToWindow())
         return;
diff --git a/WebCore/platform/graphics/chromium/VideoLayerChromium.h b/WebCore/platform/graphics/chromium/VideoLayerChromium.h
index 05b6578..0992ab7 100644
--- a/WebCore/platform/graphics/chromium/VideoLayerChromium.h
+++ b/WebCore/platform/graphics/chromium/VideoLayerChromium.h
@@ -45,7 +45,7 @@ public:
     static PassRefPtr<VideoLayerChromium> create(GraphicsLayerChromium* owner = 0,
                                                  VideoFrameProvider* = 0);
     virtual ~VideoLayerChromium();
-    virtual void updateContents();
+    virtual void updateContentsIfDirty();
     virtual bool drawsContent() { return true; }
     virtual void draw();
 
diff --git a/WebCore/platform/graphics/chromium/WebGLLayerChromium.cpp b/WebCore/platform/graphics/chromium/WebGLLayerChromium.cpp
index 2055ae6..5b34bb9 100644
--- a/WebCore/platform/graphics/chromium/WebGLLayerChromium.cpp
+++ b/WebCore/platform/graphics/chromium/WebGLLayerChromium.cpp
@@ -50,8 +50,11 @@ WebGLLayerChromium::WebGLLayerChromium(GraphicsLayerChromium* owner)
 {
 }
 
-void WebGLLayerChromium::updateContents()
+void WebGLLayerChromium::updateContentsIfDirty()
 {
+    if (!m_contentsDirty)
+        return;
+
     GraphicsContext3D* rendererContext = layerRendererContext();
     ASSERT(m_context);
     if (m_textureChanged) {
diff --git a/WebCore/platform/graphics/chromium/WebGLLayerChromium.h b/WebCore/platform/graphics/chromium/WebGLLayerChromium.h
index 11b8db7..c67cc2c 100644
--- a/WebCore/platform/graphics/chromium/WebGLLayerChromium.h
+++ b/WebCore/platform/graphics/chromium/WebGLLayerChromium.h
@@ -45,7 +45,7 @@ class WebGLLayerChromium : public CanvasLayerChromium {
 public:
     static PassRefPtr<WebGLLayerChromium> create(GraphicsLayerChromium* owner = 0);
     virtual bool drawsContent() { return m_context; }
-    virtual void updateContents();
+    virtual void updateContentsIfDirty();
 
     void setContext(const GraphicsContext3D* context);
 

-- 
WebKit Debian packaging

