[SCM] WebKit Debian packaging branch, webkit-1.3, updated. upstream/1.3.7-4207-g178b198

morrita at google.com morrita at google.com
Sun Feb 20 23:09:04 UTC 2011


The following commit has been merged in the webkit-1.3 branch:
commit 1da9327bd294f549d7f3fa3b15cacbea58331438
Author: morrita at google.com <morrita at google.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Date:   Tue Jan 18 08:59:01 2011 +0000

    2011-01-17  MORITA Hajime  <morrita at google.com>
    
            Reviewed by Simon Fraser.
    
            Refactoring: Extract RoundedIntRect class
            https://bugs.webkit.org/show_bug.cgi?id=51664
    
            RoundedIntRect is a pair of rect and four IntSize objects which represent
            corner radii of the rectangle. IntSize is grouped into RoundedIntRect::Radii.
            Now RenderStyle::getRoundedBorderFor() and RenderStyle::getRoundedInnerBorderWithBorderWidths()
            return RoundedIntRect and GraphicsContext::addRoundedRectClip(), GraphicsContext::fillRoundedRect()
            and other functions accept RoundedIntRect as an argument.
    
            No new tests. No behavioral change.
    
            * Android.mk:
            * CMakeLists.txt:
            * WebCore.gypi:
            * WebCore.pro:
            * WebCore.xcodeproj/project.pbxproj:
            * platform/graphics/GraphicsContext.cpp:
            (WebCore::GraphicsContext::addRoundedRectClip):
            (WebCore::GraphicsContext::clipOutRoundedRect):
            (WebCore::GraphicsContext::fillRoundedRect):
            * platform/graphics/GraphicsContext.h:
            * platform/graphics/RoundedIntRect.cpp: Added.
            (WebCore::RoundedIntRect::Radii::isZero):
            (WebCore::RoundedIntRect::Radii::scale):
            (WebCore::RoundedIntRect::Radii::expand):
            (WebCore::RoundedIntRect::Radii::includeLogicalEdges):
            (WebCore::RoundedIntRect::Radii::excludeLogicalEdges):
            (WebCore::RoundedIntRect::RoundedIntRect):
            (WebCore::RoundedIntRect::includeLogicalEdges):
            (WebCore::RoundedIntRect::excludeLogicalEdges):
            * platform/graphics/RoundedIntRect.h: Added.
            (WebCore::RoundedIntRect::Radii::Radii):
            (WebCore::RoundedIntRect::Radii::setTopLeft):
            (WebCore::RoundedIntRect::Radii::setTopRight):
            (WebCore::RoundedIntRect::Radii::setBottomLeft):
            (WebCore::RoundedIntRect::Radii::setBottomRight):
            (WebCore::RoundedIntRect::Radii::topLeft):
            (WebCore::RoundedIntRect::Radii::topRight):
            (WebCore::RoundedIntRect::Radii::bottomLeft):
            (WebCore::RoundedIntRect::Radii::bottomRight):
            (WebCore::RoundedIntRect::Radii::expand):
            (WebCore::RoundedIntRect::Radii::shrink):
            (WebCore::RoundedIntRect::location):
            (WebCore::RoundedIntRect::size):
            (WebCore::RoundedIntRect::x):
            (WebCore::RoundedIntRect::y):
            (WebCore::RoundedIntRect::width):
            (WebCore::RoundedIntRect::height):
            (WebCore::RoundedIntRect::right):
            (WebCore::RoundedIntRect::bottom):
            (WebCore::RoundedIntRect::rect):
            (WebCore::RoundedIntRect::radii):
            (WebCore::RoundedIntRect::isRounded):
            (WebCore::RoundedIntRect::isEmpty):
            (WebCore::RoundedIntRect::setRect):
            (WebCore::RoundedIntRect::setRadii):
            (WebCore::RoundedIntRect::move):
            (WebCore::RoundedIntRect::inflate):
            (WebCore::RoundedIntRect::inflateWithRadii):
            (WebCore::RoundedIntRect::expandRadii):
            (WebCore::RoundedIntRect::shrinkRadii):
            * rendering/RenderBox.cpp:
            (WebCore::RenderBox::pushContentsClip):
            * rendering/RenderBoxModelObject.cpp:
            (WebCore::RenderBoxModelObject::paintFillLayerExtended):
            (WebCore::RenderBoxModelObject::paintBorder):
            (WebCore::RenderBoxModelObject::clipBorderSidePolygon):
            (WebCore::RenderBoxModelObject::paintBoxShadow):
            * rendering/RenderBoxModelObject.h:
            * rendering/RenderObject.cpp:
            (WebCore::RenderObject::drawBoxSideFromPath):
            * rendering/RenderReplaced.cpp:
            (WebCore::RenderReplaced::paint):
            * rendering/RenderThemeChromiumWin.cpp:
            (WebCore::RenderThemeChromiumWin::paintTextFieldInternal):
            * rendering/RenderThemeMac.mm:
            (WebCore::RenderThemeMac::paintMenuListButtonGradients):
            (WebCore::RenderThemeMac::paintSliderTrack):
            * rendering/RenderThemeSafari.cpp:
            (WebCore::RenderThemeSafari::paintMenuListButtonGradients):
            (WebCore::RenderThemeSafari::paintSliderTrack):
            * rendering/RenderThemeWinCE.cpp:
            (WebCore::RenderThemeWinCE::paintSearchFieldCancelButton):
            * rendering/RenderWidget.cpp:
            (WebCore::RenderWidget::paint):
            * rendering/style/BorderData.h:
            * rendering/style/RenderStyle.cpp:
            (WebCore::calcRadiiFor):
            (WebCore::calcConstraintScaleFor):
            (WebCore::RenderStyle::getRoundedBorderFor):
            (WebCore::RenderStyle::getRoundedInnerBorderWithBorderWidths):
            * rendering/style/RenderStyle.h:
            (WebCore::InheritedFlags::setBorderRadius):
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76004 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/Source/WebCore/Android.mk b/Source/WebCore/Android.mk
index 9ca484a..4251338 100644
--- a/Source/WebCore/Android.mk
+++ b/Source/WebCore/Android.mk
@@ -531,6 +531,7 @@ LOCAL_SRC_FILES := $(LOCAL_SRC_FILES) \
 	platform/graphics/Path.cpp \
 	platform/graphics/PathTraversalState.cpp \
 	platform/graphics/Pattern.cpp \
+	platform/graphics/RoundedIntRect.cpp \
 	platform/graphics/SegmentedFontData.cpp \
 	platform/graphics/SimpleFontData.cpp \
 	platform/graphics/StringTruncator.cpp \
diff --git a/Source/WebCore/CMakeLists.txt b/Source/WebCore/CMakeLists.txt
index 8050b48..765e413 100644
--- a/Source/WebCore/CMakeLists.txt
+++ b/Source/WebCore/CMakeLists.txt
@@ -1350,6 +1350,7 @@ SET(WebCore_SOURCES
     platform/graphics/Path.cpp
     platform/graphics/PathTraversalState.cpp
     platform/graphics/Pattern.cpp
+    platform/graphics/RoundedIntRect.cpp
     platform/graphics/SegmentedFontData.cpp
     platform/graphics/SimpleFontData.cpp
     platform/graphics/StringTruncator.cpp
diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
index 404a4a3..3dd6c6c 100644
--- a/Source/WebCore/ChangeLog
+++ b/Source/WebCore/ChangeLog
@@ -1,3 +1,101 @@
+2011-01-17  MORITA Hajime  <morrita at google.com>
+
+        Reviewed by Simon Fraser.
+
+        Refactoring: Extract RoundedIntRect class
+        https://bugs.webkit.org/show_bug.cgi?id=51664
+
+        RoundedIntRect is a pair of rect and four IntSize objects which represent
+        corner radii of the rectangle. IntSize is grouped into RoundedIntRect::Radii.
+        Now RenderStyle::getRoundedBorderFor() and RenderStyle::getRoundedInnerBorderWithBorderWidths()
+        return RoundedIntRect and GraphicsContext::addRoundedRectClip(), GraphicsContext::fillRoundedRect()
+        and other functions accept RoundedIntRect as an argument.
+
+        No new tests. No behavioral change.
+
+        * Android.mk:
+        * CMakeLists.txt:
+        * WebCore.gypi:
+        * WebCore.pro:
+        * WebCore.xcodeproj/project.pbxproj:
+        * platform/graphics/GraphicsContext.cpp:
+        (WebCore::GraphicsContext::addRoundedRectClip):
+        (WebCore::GraphicsContext::clipOutRoundedRect):
+        (WebCore::GraphicsContext::fillRoundedRect):
+        * platform/graphics/GraphicsContext.h:
+        * platform/graphics/RoundedIntRect.cpp: Added.
+        (WebCore::RoundedIntRect::Radii::isZero):
+        (WebCore::RoundedIntRect::Radii::scale):
+        (WebCore::RoundedIntRect::Radii::expand):
+        (WebCore::RoundedIntRect::Radii::includeLogicalEdges):
+        (WebCore::RoundedIntRect::Radii::excludeLogicalEdges):
+        (WebCore::RoundedIntRect::RoundedIntRect):
+        (WebCore::RoundedIntRect::includeLogicalEdges):
+        (WebCore::RoundedIntRect::excludeLogicalEdges):
+        * platform/graphics/RoundedIntRect.h: Added.
+        (WebCore::RoundedIntRect::Radii::Radii):
+        (WebCore::RoundedIntRect::Radii::setTopLeft):
+        (WebCore::RoundedIntRect::Radii::setTopRight):
+        (WebCore::RoundedIntRect::Radii::setBottomLeft):
+        (WebCore::RoundedIntRect::Radii::setBottomRight):
+        (WebCore::RoundedIntRect::Radii::topLeft):
+        (WebCore::RoundedIntRect::Radii::topRight):
+        (WebCore::RoundedIntRect::Radii::bottomLeft):
+        (WebCore::RoundedIntRect::Radii::bottomRight):
+        (WebCore::RoundedIntRect::Radii::expand):
+        (WebCore::RoundedIntRect::Radii::shrink):
+        (WebCore::RoundedIntRect::location):
+        (WebCore::RoundedIntRect::size):
+        (WebCore::RoundedIntRect::x):
+        (WebCore::RoundedIntRect::y):
+        (WebCore::RoundedIntRect::width):
+        (WebCore::RoundedIntRect::height):
+        (WebCore::RoundedIntRect::right):
+        (WebCore::RoundedIntRect::bottom):
+        (WebCore::RoundedIntRect::rect):
+        (WebCore::RoundedIntRect::radii):
+        (WebCore::RoundedIntRect::isRounded):
+        (WebCore::RoundedIntRect::isEmpty):
+        (WebCore::RoundedIntRect::setRect):
+        (WebCore::RoundedIntRect::setRadii):
+        (WebCore::RoundedIntRect::move):
+        (WebCore::RoundedIntRect::inflate):
+        (WebCore::RoundedIntRect::inflateWithRadii):
+        (WebCore::RoundedIntRect::expandRadii):
+        (WebCore::RoundedIntRect::shrinkRadii):
+        * rendering/RenderBox.cpp:
+        (WebCore::RenderBox::pushContentsClip):
+        * rendering/RenderBoxModelObject.cpp:
+        (WebCore::RenderBoxModelObject::paintFillLayerExtended):
+        (WebCore::RenderBoxModelObject::paintBorder):
+        (WebCore::RenderBoxModelObject::clipBorderSidePolygon):
+        (WebCore::RenderBoxModelObject::paintBoxShadow):
+        * rendering/RenderBoxModelObject.h:
+        * rendering/RenderObject.cpp:
+        (WebCore::RenderObject::drawBoxSideFromPath):
+        * rendering/RenderReplaced.cpp:
+        (WebCore::RenderReplaced::paint):
+        * rendering/RenderThemeChromiumWin.cpp:
+        (WebCore::RenderThemeChromiumWin::paintTextFieldInternal):
+        * rendering/RenderThemeMac.mm:
+        (WebCore::RenderThemeMac::paintMenuListButtonGradients):
+        (WebCore::RenderThemeMac::paintSliderTrack):
+        * rendering/RenderThemeSafari.cpp:
+        (WebCore::RenderThemeSafari::paintMenuListButtonGradients):
+        (WebCore::RenderThemeSafari::paintSliderTrack):
+        * rendering/RenderThemeWinCE.cpp:
+        (WebCore::RenderThemeWinCE::paintSearchFieldCancelButton):
+        * rendering/RenderWidget.cpp:
+        (WebCore::RenderWidget::paint):
+        * rendering/style/BorderData.h:
+        * rendering/style/RenderStyle.cpp:
+        (WebCore::calcRadiiFor):
+        (WebCore::calcConstraintScaleFor):
+        (WebCore::RenderStyle::getRoundedBorderFor):
+        (WebCore::RenderStyle::getRoundedInnerBorderWithBorderWidths):
+        * rendering/style/RenderStyle.h:
+        (WebCore::InheritedFlags::setBorderRadius):
+
 2011-01-17  Rob Buis  <rwlbuis at gmail.com>
 
         Reviewed by Kent Tamura.
diff --git a/Source/WebCore/WebCore.gypi b/Source/WebCore/WebCore.gypi
index f4a239f..84f8837 100644
--- a/Source/WebCore/WebCore.gypi
+++ b/Source/WebCore/WebCore.gypi
@@ -2942,6 +2942,8 @@
             'platform/graphics/PathTraversalState.h',
             'platform/graphics/Pattern.cpp',
             'platform/graphics/Pattern.h',
+            'platform/graphics/RoundedIntRect.cpp',
+            'platform/graphics/RoundedIntRect.h',
             'platform/graphics/SegmentedFontData.cpp',
             'platform/graphics/SegmentedFontData.h',
             'platform/graphics/SimpleFontData.cpp',
diff --git a/Source/WebCore/WebCore.pro b/Source/WebCore/WebCore.pro
index d37cdc7..de12297 100644
--- a/Source/WebCore/WebCore.pro
+++ b/Source/WebCore/WebCore.pro
@@ -1210,6 +1210,7 @@ SOURCES += \
     platform/graphics/Path.cpp \
     platform/graphics/PathTraversalState.cpp \
     platform/graphics/Pattern.cpp \
+    platform/graphics/RoundedIntRect.cpp \
     platform/graphics/SegmentedFontData.cpp \
     platform/graphics/SimpleFontData.cpp \
     platform/graphics/TiledBackingStore.cpp \
@@ -2129,6 +2130,7 @@ HEADERS += \
     platform/graphics/Path.h \
     platform/graphics/PathTraversalState.h \
     platform/graphics/Pattern.h \
+    platform/graphics/RoundedIntRect.h \
     platform/graphics/qt/FontCustomPlatformData.h \
     platform/graphics/qt/ImageDecoderQt.h \
     platform/graphics/qt/StillImageQt.h \
diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
index ed86c67..215f820 100644
--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
@@ -3163,6 +3163,8 @@
 		A622A8FF122C44A600A785B3 /* GenericBinding.h in Headers */ = {isa = PBXBuildFile; fileRef = A622A8F9122C44A600A785B3 /* GenericBinding.h */; };
 		A718760E0B2A120100A16ECE /* DragActions.h in Headers */ = {isa = PBXBuildFile; fileRef = A718760D0B2A120100A16ECE /* DragActions.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		A71878900B2D04AC00A16ECE /* DragControllerMac.mm in Sources */ = {isa = PBXBuildFile; fileRef = A718788F0B2D04AC00A16ECE /* DragControllerMac.mm */; };
+		A73F95FE12C97BFE0031AAF9 /* RoundedIntRect.cpp in Sources */ = {isa = PBXBuildFile; fileRef = A73F95FC12C97BFE0031AAF9 /* RoundedIntRect.cpp */; };
+		A73F95FF12C97BFE0031AAF9 /* RoundedIntRect.h in Headers */ = {isa = PBXBuildFile; fileRef = A73F95FD12C97BFE0031AAF9 /* RoundedIntRect.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		A75E497610752ACB00C9B896 /* SerializedScriptValue.h in Headers */ = {isa = PBXBuildFile; fileRef = A75E497410752ACB00C9B896 /* SerializedScriptValue.h */; settings = {ATTRIBUTES = (Private, ); }; };
 		A75E497710752ACB00C9B896 /* SerializedScriptValue.cpp in Sources */ = {isa = PBXBuildFile; fileRef = A75E497510752ACB00C9B896 /* SerializedScriptValue.cpp */; };
 		A75E8B880E1DE2D6007F2481 /* FEBlend.cpp in Sources */ = {isa = PBXBuildFile; fileRef = A75E8B800E1DE2D6007F2481 /* FEBlend.cpp */; };
@@ -9533,6 +9535,8 @@
 		A718760D0B2A120100A16ECE /* DragActions.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DragActions.h; sourceTree = "<group>"; };
 		A718788F0B2D04AC00A16ECE /* DragControllerMac.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = DragControllerMac.mm; sourceTree = "<group>"; };
 		A71A70C911AFB02000989D6D /* HTMLMeterElement.idl */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = HTMLMeterElement.idl; sourceTree = "<group>"; };
+		A73F95FC12C97BFE0031AAF9 /* RoundedIntRect.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = RoundedIntRect.cpp; sourceTree = "<group>"; };
+		A73F95FD12C97BFE0031AAF9 /* RoundedIntRect.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RoundedIntRect.h; sourceTree = "<group>"; };
 		A75E497410752ACB00C9B896 /* SerializedScriptValue.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SerializedScriptValue.h; sourceTree = "<group>"; };
 		A75E497510752ACB00C9B896 /* SerializedScriptValue.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = SerializedScriptValue.cpp; sourceTree = "<group>"; };
 		A75E8B800E1DE2D6007F2481 /* FEBlend.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = FEBlend.cpp; path = filters/FEBlend.cpp; sourceTree = "<group>"; };
@@ -17460,6 +17464,8 @@
 				A88DD4860B4629A300C02990 /* PathTraversalState.h */,
 				A8FA6E5C0E4CFDED00D5CF49 /* Pattern.cpp */,
 				A8FA6E5B0E4CFDED00D5CF49 /* Pattern.h */,
+				A73F95FC12C97BFE0031AAF9 /* RoundedIntRect.cpp */,
+				A73F95FD12C97BFE0031AAF9 /* RoundedIntRect.h */,
 				371F4FFB0D25E7F300ECE0D5 /* SegmentedFontData.cpp */,
 				371F4FFA0D25E7F300ECE0D5 /* SegmentedFontData.h */,
 				B2C3DA530D006CD600EF6F26 /* SimpleFontData.cpp */,
@@ -21725,6 +21731,7 @@
 				FD3160AD12B026F700C1A359 /* ReverbInputBuffer.h in Headers */,
 				BC74DA371013F3F7007987AD /* RGBColor.h in Headers */,
 				A8CFF5E10A155A05000A4234 /* RootInlineBox.h in Headers */,
+				A73F95FF12C97BFE0031AAF9 /* RoundedIntRect.h in Headers */,
 				49E911C90EF86D47009D0CAF /* RotateTransformOperation.h in Headers */,
 				1C63A2480F71646600C09D5A /* RunLoopTimer.h in Headers */,
 				1A569D1F0D7E2B82007C3983 /* runtime_array.h in Headers */,
@@ -24516,6 +24523,7 @@
 				FD3160AC12B026F700C1A359 /* ReverbInputBuffer.cpp in Sources */,
 				BC74DA381013F3F7007987AD /* RGBColor.cpp in Sources */,
 				A8CFF5E70A155A05000A4234 /* RootInlineBox.cpp in Sources */,
+				A73F95FE12C97BFE0031AAF9 /* RoundedIntRect.cpp in Sources */,
 				49E911C80EF86D47009D0CAF /* RotateTransformOperation.cpp in Sources */,
 				1C63A2490F71646600C09D5A /* RunLoopTimerCF.cpp in Sources */,
 				1A569D1E0D7E2B82007C3983 /* runtime_array.cpp in Sources */,
diff --git a/Source/WebCore/platform/graphics/GraphicsContext.cpp b/Source/WebCore/platform/graphics/GraphicsContext.cpp
index 61b778c..e7ea881 100644
--- a/Source/WebCore/platform/graphics/GraphicsContext.cpp
+++ b/Source/WebCore/platform/graphics/GraphicsContext.cpp
@@ -31,6 +31,7 @@
 #include "Generator.h"
 #include "ImageBuffer.h"
 #include "IntRect.h"
+#include "RoundedIntRect.h"
 
 using namespace std;
 
@@ -536,25 +537,23 @@ void GraphicsContext::drawImageBuffer(ImageBuffer* image, ColorSpace styleColorS
         image->draw(this, styleColorSpace, dest, src, op, useLowQualityScale);
 }
 
-void GraphicsContext::addRoundedRectClip(const IntRect& rect, const IntSize& topLeft, const IntSize& topRight,
-    const IntSize& bottomLeft, const IntSize& bottomRight)
+void GraphicsContext::addRoundedRectClip(const RoundedIntRect& rect)
 {
     if (paintingDisabled())
         return;
 
     Path path;
-    path.addRoundedRect(rect, topLeft, topRight, bottomLeft, bottomRight);
+    path.addRoundedRect(rect.rect(), rect.radii().topLeft(), rect.radii().topRight(), rect.radii().bottomLeft(), rect.radii().bottomRight());
     clip(path);
 }
 
-void GraphicsContext::clipOutRoundedRect(const IntRect& rect, const IntSize& topLeft, const IntSize& topRight,
-                                         const IntSize& bottomLeft, const IntSize& bottomRight)
+void GraphicsContext::clipOutRoundedRect(const RoundedIntRect& rect)
 {
     if (paintingDisabled())
         return;
 
     Path path;
-    path.addRoundedRect(rect, topLeft, topRight, bottomLeft, bottomRight);
+    path.addRoundedRect(rect.rect(), rect.radii().topLeft(), rect.radii().topRight(), rect.radii().bottomLeft(), rect.radii().bottomRight());
     clipOut(path);
 }
 
@@ -585,6 +584,11 @@ void GraphicsContext::fillRect(const FloatRect& rect, Generator& generator)
     generator.fill(this, rect);
 }
 
+void GraphicsContext::fillRoundedRect(const RoundedIntRect& rect, const Color& color, ColorSpace colorSpace)
+{
+    fillRoundedRect(rect.rect(), rect.radii().topLeft(), rect.radii().topRight(), rect.radii().bottomLeft(), rect.radii().bottomRight(), color, colorSpace);
+}
+
 void GraphicsContext::setCompositeOperation(CompositeOperator compositeOperation)
 {
     m_state.compositeOperator = compositeOperation;
diff --git a/Source/WebCore/platform/graphics/GraphicsContext.h b/Source/WebCore/platform/graphics/GraphicsContext.h
index 8588523..a459b37 100644
--- a/Source/WebCore/platform/graphics/GraphicsContext.h
+++ b/Source/WebCore/platform/graphics/GraphicsContext.h
@@ -120,6 +120,7 @@ namespace WebCore {
     class GraphicsContextPlatformPrivate;
     class ImageBuffer;
     class IntRect;
+    class RoundedIntRect;
     class KURL;
     class SharedGraphicsContext3D;
     class TextRun;
@@ -282,6 +283,7 @@ namespace WebCore {
         void fillRect(const FloatRect&, const Color&, ColorSpace);
         void fillRect(const FloatRect&, Generator&);
         void fillRoundedRect(const IntRect&, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight, const Color&, ColorSpace);
+        void fillRoundedRect(const RoundedIntRect&, const Color&, ColorSpace);
 
         void clearRect(const FloatRect&);
 
@@ -310,10 +312,10 @@ namespace WebCore {
         InterpolationQuality imageInterpolationQuality() const;
 
         void clip(const FloatRect&);
-        void addRoundedRectClip(const IntRect&, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight);
+        void addRoundedRectClip(const RoundedIntRect&);
         void addInnerRoundedRectClip(const IntRect&, int thickness);
         void clipOut(const IntRect&);
-        void clipOutRoundedRect(const IntRect&, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight);
+        void clipOutRoundedRect(const RoundedIntRect&);
         void clipPath(const Path&, WindRule);
         void clipConvexPolygon(size_t numPoints, const FloatPoint*, bool antialias = true);
         void clipToImageBuffer(ImageBuffer*, const FloatRect&);
diff --git a/Source/WebCore/platform/graphics/RoundedIntRect.cpp b/Source/WebCore/platform/graphics/RoundedIntRect.cpp
new file mode 100644
index 0000000..4e80c9a
--- /dev/null
+++ b/Source/WebCore/platform/graphics/RoundedIntRect.cpp
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
+ * 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 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 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"
+#include "RoundedIntRect.h"
+
+#include "IntRect.h"
+#include <algorithm>
+
+namespace WebCore {
+
+bool RoundedIntRect::Radii::isZero() const
+{
+    return m_topLeft.isZero() && m_topRight.isZero() && m_bottomLeft.isZero() && m_bottomRight.isZero();
+}
+
+void RoundedIntRect::Radii::scale(float factor)
+{
+    if (factor == 1)
+        return;
+
+    // If either radius on a corner becomes zero, reset both radii on that corner.
+    m_topLeft.scale(factor);
+    if (!m_topLeft.width() || !m_topLeft.height())
+        m_topLeft = IntSize();
+    m_topRight.scale(factor);
+    if (!m_topRight.width() || !m_topRight.height())
+        m_topRight = IntSize();
+    m_bottomLeft.scale(factor);
+    if (!m_bottomLeft.width() || !m_bottomLeft.height())
+        m_bottomLeft = IntSize();
+    m_bottomRight.scale(factor);
+    if (!m_bottomRight.width() || !m_bottomRight.height())
+        m_bottomRight = IntSize();
+
+}
+
+void RoundedIntRect::Radii::expand(int topWidth, int bottomWidth, int leftWidth, int rightWidth)
+{
+    m_topLeft.setWidth(std::max(0, m_topLeft.width() + leftWidth));
+    m_topLeft.setHeight(std::max(0, m_topLeft.height() + topWidth));
+
+    m_topRight.setWidth(std::max(0, m_topRight.width() + rightWidth));
+    m_topRight.setHeight(std::max(0, m_topRight.height() + topWidth));
+
+    m_bottomLeft.setWidth(std::max(0, m_bottomLeft.width() + leftWidth));
+    m_bottomLeft.setHeight(std::max(0, m_bottomLeft.height() + bottomWidth));
+
+    m_bottomRight.setWidth(std::max(0, m_bottomRight.width() + rightWidth));
+    m_bottomRight.setHeight(std::max(0, m_bottomRight.height() + bottomWidth));
+}
+
+void RoundedIntRect::Radii::includeLogicalEdges(const RoundedIntRect::Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge)
+{
+    if (includeLogicalLeftEdge) {
+        if (isHorizontal)
+            m_bottomLeft = edges.bottomLeft();
+        else
+            m_topRight = edges.topRight();
+        m_topLeft = edges.topLeft();
+    }
+
+    if (includeLogicalRightEdge) {
+        if (isHorizontal)
+            m_topRight = edges.topRight();
+        else
+            m_bottomLeft = edges.bottomLeft();
+        m_bottomRight = edges.bottomRight();
+    }
+}
+
+void RoundedIntRect::Radii::excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge)
+{
+    if (excludeLogicalLeftEdge) {
+        if (isHorizontal)
+            m_bottomLeft = IntSize();
+        else
+            m_topRight = IntSize();
+        m_topLeft = IntSize();
+    }
+        
+    if (excludeLogicalRightEdge) {
+        if (isHorizontal)
+            m_topRight = IntSize();
+        else
+            m_bottomLeft = IntSize();
+        m_bottomRight = IntSize();
+    }
+}
+
+RoundedIntRect::RoundedIntRect(int x, int y, int width, int height)
+    : m_rect(x, y, width, height)
+{
+}
+
+RoundedIntRect::RoundedIntRect(const IntRect& rect, const Radii& radii)
+    : m_rect(rect)
+    , m_radii(radii)
+{
+}
+
+RoundedIntRect::RoundedIntRect(const IntRect& rect, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight)
+    : m_rect(rect)
+    , m_radii(topLeft, topRight, bottomLeft, bottomRight)
+{
+}
+
+void RoundedIntRect::includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge)
+{
+    m_radii.includeLogicalEdges(edges, isHorizontal, includeLogicalLeftEdge, includeLogicalRightEdge);
+}
+
+void RoundedIntRect::excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge)
+{
+    m_radii.excludeLogicalEdges(isHorizontal, excludeLogicalLeftEdge, excludeLogicalRightEdge);
+}
+
+} // namespace WebCore
diff --git a/Source/WebCore/platform/graphics/RoundedIntRect.h b/Source/WebCore/platform/graphics/RoundedIntRect.h
new file mode 100644
index 0000000..39b7fb4
--- /dev/null
+++ b/Source/WebCore/platform/graphics/RoundedIntRect.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
+ * 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 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 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 RoundedIntRect_h
+#define RoundedIntRect_h
+
+#include "IntRect.h"
+
+namespace WebCore {
+
+
+class RoundedIntRect {
+public:
+    class Radii {
+    public:
+        Radii() {}
+        Radii(const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight)
+            : m_topLeft(topLeft)
+            , m_topRight(topRight)
+            , m_bottomLeft(bottomLeft)
+            , m_bottomRight(bottomRight)
+        {
+        }
+
+        void setTopLeft(const IntSize& size) { m_topLeft = size; }
+        void setTopRight(const IntSize& size) { m_topRight = size; }
+        void setBottomLeft(const IntSize& size) { m_bottomLeft = size; }
+        void setBottomRight(const IntSize& size) { m_bottomRight = size; }
+        const IntSize& topLeft() const { return m_topLeft; }
+        const IntSize& topRight() const { return m_topRight; }
+        const IntSize& bottomLeft() const { return m_bottomLeft; }
+        const IntSize& bottomRight() const { return m_bottomRight; }
+
+        bool isZero() const;
+
+        void includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
+        void excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge);
+
+        void scale(float factor);
+        void expand(int topWidth, int bottomWidth, int leftWidth, int rightWidth);
+        void expand(int size) { expand(size, size, size, size); }
+        void shrink(int topWidth, int bottomWidth, int leftWidth, int rightWidth) { expand(-topWidth, -bottomWidth, -leftWidth, -rightWidth); }
+        void shrink(int size) { shrink(size, size, size, size); }
+
+    private:
+        IntSize m_topLeft;
+        IntSize m_topRight;
+        IntSize m_bottomLeft;
+        IntSize m_bottomRight;
+    };
+
+    explicit RoundedIntRect(const IntRect&, const Radii& = Radii());
+    RoundedIntRect(int x, int y, int width, int height);
+    RoundedIntRect(const IntRect&, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight);
+
+    IntPoint location() const { return m_rect.location(); }
+    IntSize size() const { return m_rect.size(); }
+
+    int x() const { return m_rect.x(); }
+    int y() const { return m_rect.y(); }
+    int width() const { return m_rect.width(); }
+    int height() const { return m_rect.height(); }
+    int right() const { return m_rect.right(); }
+    int bottom() const { return m_rect.bottom(); }
+
+    const IntRect& rect() const { return m_rect; }
+    const Radii& radii() const { return m_radii; }
+    bool isRounded() const { return !m_radii.isZero(); }
+    bool isEmpty() const { return m_rect.isEmpty(); }
+
+    void setRect(const IntRect& rect) { m_rect = rect; }
+    void setRadii(const Radii& radii) { m_radii = radii; }
+
+    void move(const IntSize size) { m_rect.move(size); }
+    void inflate(int size) { m_rect.inflate(size);  }
+    void inflateWithRadii(int size) { m_rect.inflate(size); m_radii.expand(size); }
+    void expandRadii(int size) { m_radii.expand(size); }
+    void shrinkRadii(int size) { m_radii.shrink(size); }
+
+    void includeLogicalEdges(const Radii& edges, bool isHorizontal, bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
+    void excludeLogicalEdges(bool isHorizontal, bool excludeLogicalLeftEdge, bool excludeLogicalRightEdge);
+
+private:
+    IntRect m_rect;
+    Radii m_radii;
+};
+
+} // namespace WebCore
+
+#endif // RoundedIntRect_h
diff --git a/Source/WebCore/rendering/RenderBox.cpp b/Source/WebCore/rendering/RenderBox.cpp
index 3d367aa..f20aa0e 100644
--- a/Source/WebCore/rendering/RenderBox.cpp
+++ b/Source/WebCore/rendering/RenderBox.cpp
@@ -1067,14 +1067,8 @@ bool RenderBox::pushContentsClip(PaintInfo& paintInfo, int tx, int ty)
     }
     IntRect clipRect(isControlClip ? controlClipRect(tx, ty) : overflowClipRect(tx, ty));
     paintInfo.context->save();
-    if (style()->hasBorderRadius()) {
-        IntSize topLeft, topRight, bottomLeft, bottomRight;
-        IntRect borderRect = IntRect(tx, ty, width(), height());
-        style()->getBorderRadiiForRect(borderRect, topLeft, topRight, bottomLeft, bottomRight);
-
-        paintInfo.context->addRoundedRectClip(borderRect, topLeft, topRight, bottomLeft, bottomRight);
-    }
-    
+    if (style()->hasBorderRadius())
+        paintInfo.context->addRoundedRectClip(style()->getRoundedBorderFor(IntRect(tx, ty, width(), height())));
     paintInfo.context->clip(clipRect);
     return true;
 }
diff --git a/Source/WebCore/rendering/RenderBoxModelObject.cpp b/Source/WebCore/rendering/RenderBoxModelObject.cpp
index 5098306..11771a7 100644
--- a/Source/WebCore/rendering/RenderBoxModelObject.cpp
+++ b/Source/WebCore/rendering/RenderBoxModelObject.cpp
@@ -547,26 +547,9 @@ void RenderBoxModelObject::paintFillLayerExtended(const PaintInfo& paintInfo, co
 
         context->save();
 
-        IntSize topLeft, topRight, bottomLeft, bottomRight;
-        style()->getBorderRadiiForRect(borderRect, topLeft, topRight, bottomLeft, bottomRight);
-
-        if (!includeLeftEdge) {
-            topLeft = IntSize();
-            if (box->isHorizontal())
-                bottomLeft = IntSize();
-            else
-                topRight = IntSize();
-        }
-        
-        if (!includeRightEdge) {
-            if (box->isHorizontal())
-                topRight = IntSize();
-            else
-                bottomLeft = IntSize();
-            bottomRight = IntSize();
-        }
-        
-        context->addRoundedRectClip(borderRect, topLeft, topRight, bottomLeft, bottomRight);
+        RoundedIntRect border = style()->getRoundedBorderFor(borderRect);
+        border.excludeLogicalEdges(box->isHorizontal(), !includeLeftEdge, !includeRightEdge);
+        context->addRoundedRectClip(border);
         clippedToBorderRadius = true;
     }
 
@@ -1024,62 +1007,32 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
     bool renderRight = rightStyle > BHIDDEN && !rightTransparent && (!horizontal || includeLogicalRightEdge);
     bool renderBottom = bottomStyle > BHIDDEN && !bottomTransparent && (horizontal || includeLogicalRightEdge);
 
-    bool renderRadii = false;
     Path roundedPath;
-    IntSize topLeft, topRight, bottomLeft, bottomRight;
-    IntRect borderRect(tx, ty, w, h);
+    RoundedIntRect border(tx, ty, w, h);
 
     if (style->hasBorderRadius()) {
-        IntSize topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius;
-        style->getBorderRadiiForRect(borderRect, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
+        border.includeLogicalEdges(style->getRoundedBorderFor(border.rect()).radii(),
+                                   horizontal, includeLogicalLeftEdge, includeLogicalRightEdge);
 
         int leftWidth = (!horizontal || includeLogicalLeftEdge) ? style->borderLeftWidth() : 0;
         int rightWidth = (!horizontal || includeLogicalRightEdge) ? style->borderRightWidth() : 0;
         int topWidth = (horizontal || includeLogicalLeftEdge) ? style->borderTopWidth() : 0;
         int bottomWidth = (horizontal || includeLogicalRightEdge) ? style->borderBottomWidth() : 0;
 
-        IntRect innerBorderRect = borderInnerRect(borderRect, topWidth, bottomWidth, leftWidth, rightWidth);
-        IntSize innerTopLeftRadius, innerTopRightRadius, innerBottomLeftRadius, innerBottomRightRadius;
-        
-        style->getInnerBorderRadiiForRectWithBorderWidths(innerBorderRect, topWidth, bottomWidth, leftWidth, rightWidth, innerTopLeftRadius, innerTopRightRadius, innerBottomLeftRadius, innerBottomRightRadius);
-
-        IntSize innerTopLeft, innerTopRight, innerBottomLeft, innerBottomRight;
-
-        if (includeLogicalLeftEdge) {
-            topLeft = topLeftRadius;
-            innerTopLeft = innerTopLeftRadius;
-            if (horizontal) {
-                bottomLeft = bottomLeftRadius;
-                innerBottomLeft = innerBottomLeftRadius;
-            } else {
-                topRight = topRightRadius;
-                innerTopRight = innerTopRightRadius;
-            }
-        }
-
-        if (includeLogicalRightEdge) {
-            if (horizontal) {
-                topRight = topRightRadius;
-                innerTopRight = innerTopRightRadius;
-            } else {
-                bottomLeft = bottomLeftRadius;
-                innerBottomLeft = innerBottomLeftRadius;
-            }
-            bottomRight = bottomRightRadius;
-            innerBottomRight = innerBottomRightRadius;
-        }
+        RoundedIntRect inner(borderInnerRect(border.rect(), topWidth, bottomWidth, leftWidth, rightWidth));
+        inner.includeLogicalEdges(style->getRoundedInnerBorderWithBorderWidths(inner.rect(), topWidth, bottomWidth, leftWidth, rightWidth).radii(),
+                                  horizontal, includeLogicalLeftEdge, includeLogicalRightEdge);
 
-        renderRadii = !topLeft.isZero() || !topRight.isZero() || !bottomLeft.isZero() || !bottomRight.isZero();
-        
-        if (renderRadii) {
+        if (border.isRounded()) {
             // Clip to the inner and outer radii rects.
             graphicsContext->save();
-            graphicsContext->addRoundedRectClip(borderRect, topLeft, topRight, bottomLeft, bottomRight);
-            graphicsContext->clipOutRoundedRect(innerBorderRect, innerTopLeft, innerTopRight, innerBottomLeft, innerBottomRight);
-            roundedPath.addRoundedRect(borderRect, topLeft, topRight, bottomLeft, bottomRight);
+            graphicsContext->addRoundedRectClip(border);
+            graphicsContext->clipOutRoundedRect(inner);
+            roundedPath.addRoundedRect(border.rect(), border.radii().topLeft(), border.radii().topRight(), border.radii().bottomLeft(), border.radii().bottomRight());
         }
     }
 
+    bool renderRadii = border.isRounded();
     bool upperLeftBorderStylesMatch = renderLeft && (topStyle == leftStyle) && (topColor == leftColor);
     bool upperRightBorderStylesMatch = renderRight && (topStyle == rightStyle) && (topColor == rightColor) && (topStyle != OUTSET) && (topStyle != RIDGE) && (topStyle != INSET) && (topStyle != GROOVE);
     bool lowerLeftBorderStylesMatch = renderLeft && (bottomStyle == leftStyle) && (bottomColor == leftColor) && (bottomStyle != OUTSET) && (bottomStyle != RIDGE) && (bottomStyle != INSET) && (bottomStyle != GROOVE);
@@ -1089,11 +1042,11 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
         int x = tx;
         int x2 = tx + w;
 
-        if (renderRadii && borderWillArcInnerEdge(topLeft, topRight, style->borderLeftWidth(), style->borderRightWidth(), style->borderTopWidth())) {
+        if (renderRadii && borderWillArcInnerEdge(border.radii().topLeft(), border.radii().topRight(), style->borderLeftWidth(), style->borderRightWidth(), style->borderTopWidth())) {
             graphicsContext->save();
-            clipBorderSidePolygon(graphicsContext, borderRect, topLeft, topRight, bottomLeft, bottomRight, BSTop, upperLeftBorderStylesMatch, upperRightBorderStylesMatch, style, includeLogicalLeftEdge, includeLogicalRightEdge);
+            clipBorderSidePolygon(graphicsContext, border, BSTop, upperLeftBorderStylesMatch, upperRightBorderStylesMatch, style, includeLogicalLeftEdge, includeLogicalRightEdge);
             float thickness = max(max(style->borderTopWidth(), style->borderLeftWidth()), style->borderRightWidth());
-            drawBoxSideFromPath(graphicsContext, borderRect, roundedPath, style->borderTopWidth(), thickness, BSTop, style, topColor, topStyle);
+            drawBoxSideFromPath(graphicsContext, border.rect(), roundedPath, style->borderTopWidth(), thickness, BSTop, style, topColor, topStyle);
             graphicsContext->restore();
         } else {
             bool ignoreLeft = (topColor == leftColor && topTransparent == leftTransparent && topStyle >= OUTSET
@@ -1110,11 +1063,11 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
         int x = tx;
         int x2 = tx + w;
 
-        if (renderRadii && borderWillArcInnerEdge(bottomLeft, bottomRight, style->borderLeftWidth(), style->borderRightWidth(), style->borderBottomWidth())) {
+        if (renderRadii && borderWillArcInnerEdge(border.radii().bottomLeft(), border.radii().bottomRight(), style->borderLeftWidth(), style->borderRightWidth(), style->borderBottomWidth())) {
             graphicsContext->save();
-            clipBorderSidePolygon(graphicsContext, borderRect, topLeft, topRight, bottomLeft, bottomRight, BSBottom, lowerLeftBorderStylesMatch, lowerRightBorderStylesMatch, style, includeLogicalLeftEdge, includeLogicalRightEdge);
+            clipBorderSidePolygon(graphicsContext, border, BSBottom, lowerLeftBorderStylesMatch, lowerRightBorderStylesMatch, style, includeLogicalLeftEdge, includeLogicalRightEdge);
             float thickness = max(max(style->borderBottomWidth(), style->borderLeftWidth()), style->borderRightWidth());
-            drawBoxSideFromPath(graphicsContext, borderRect, roundedPath, style->borderBottomWidth(), thickness, BSBottom, style, bottomColor, bottomStyle);
+            drawBoxSideFromPath(graphicsContext, border.rect(), roundedPath, style->borderBottomWidth(), thickness, BSBottom, style, bottomColor, bottomStyle);
             graphicsContext->restore();
         } else {
             bool ignoreLeft = (bottomColor == leftColor && bottomTransparent == leftTransparent && bottomStyle >= OUTSET
@@ -1133,11 +1086,11 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
         int y = ty;
         int y2 = ty + h;
 
-        if (renderRadii && borderWillArcInnerEdge(bottomLeft, topLeft, style->borderBottomWidth(), style->borderTopWidth(), style->borderLeftWidth())) {
+        if (renderRadii && borderWillArcInnerEdge(border.radii().bottomLeft(), border.radii().topLeft(), style->borderBottomWidth(), style->borderTopWidth(), style->borderLeftWidth())) {
             graphicsContext->save();
-            clipBorderSidePolygon(graphicsContext, borderRect, topLeft, topRight, bottomLeft, bottomRight, BSLeft, upperLeftBorderStylesMatch, lowerLeftBorderStylesMatch, style, includeLogicalLeftEdge, includeLogicalRightEdge);
+            clipBorderSidePolygon(graphicsContext, border, BSLeft, upperLeftBorderStylesMatch, lowerLeftBorderStylesMatch, style, includeLogicalLeftEdge, includeLogicalRightEdge);
             float thickness = max(max(style->borderLeftWidth(), style->borderTopWidth()), style->borderBottomWidth());
-            drawBoxSideFromPath(graphicsContext, borderRect, roundedPath, style->borderLeftWidth(), thickness, BSLeft, style, leftColor, leftStyle);
+            drawBoxSideFromPath(graphicsContext, border.rect(), roundedPath, style->borderLeftWidth(), thickness, BSLeft, style, leftColor, leftStyle);
             graphicsContext->restore();
         } else {
             bool ignoreTop = (topColor == leftColor && topTransparent == leftTransparent && leftStyle >= OUTSET
@@ -1152,11 +1105,11 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
     }
 
     if (renderRight) {
-        if (renderRadii && borderWillArcInnerEdge(bottomRight, topRight, style->borderBottomWidth(), style->borderTopWidth(), style->borderRightWidth())) {
+        if (renderRadii && borderWillArcInnerEdge(border.radii().bottomRight(), border.radii().topRight(), style->borderBottomWidth(), style->borderTopWidth(), style->borderRightWidth())) {
             graphicsContext->save();
-            clipBorderSidePolygon(graphicsContext, borderRect, topLeft, topRight, bottomLeft, bottomRight, BSRight, upperRightBorderStylesMatch, lowerRightBorderStylesMatch, style, includeLogicalLeftEdge, includeLogicalRightEdge);
+            clipBorderSidePolygon(graphicsContext, border, BSRight, upperRightBorderStylesMatch, lowerRightBorderStylesMatch, style, includeLogicalLeftEdge, includeLogicalRightEdge);
             float thickness = max(max(style->borderRightWidth(), style->borderTopWidth()), style->borderBottomWidth());
-            drawBoxSideFromPath(graphicsContext, borderRect, roundedPath, style->borderRightWidth(), thickness, BSRight, style, rightColor, rightStyle);
+            drawBoxSideFromPath(graphicsContext, border.rect(), roundedPath, style->borderRightWidth(), thickness, BSRight, style, rightColor, rightStyle);
             graphicsContext->restore();
         } else {
             bool ignoreTop = ((topColor == rightColor) && (topTransparent == rightTransparent)
@@ -1209,65 +1162,43 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
     bool renderRight = rightStyle > BHIDDEN && !rightTransparent && (!horizontal || includeLogicalRightEdge);
     bool renderBottom = bottomStyle > BHIDDEN && !bottomTransparent && (horizontal || includeLogicalRightEdge);
 
-    bool renderRadii = false;
-    IntSize topLeft, topRight, bottomLeft, bottomRight;
 
+    RoundedIntRect border(tx, ty, w, h);
     if (style->hasBorderRadius()) {
-        IntRect borderRect = IntRect(tx, ty, w, h);
-
-        IntSize topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius;
-        style->getBorderRadiiForRect(borderRect, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
-
-        if (includeLogicalLeftEdge) {
-            topLeft = topLeftRadius;
-            if (horizontal)
-                bottomLeft = bottomLeftRadius;
-            else
-                topRight = topRightRadius;
-        }
-        
-        if (includeLogicalRightEdge) {
-            if (horizontal)
-                topRight = topRightRadius;
-            else
-                bottomLeft = bottomLeftRadius;
-            bottomRight = bottomRightRadius;
-        }
-
-        renderRadii = !topLeft.isZero() || !topRight.isZero() || !bottomLeft.isZero() || !bottomRight.isZero();
-        
-        if (renderRadii) {
-            // Clip to the rounded rectangle.
+        border.includeLogicalEdges(style->getRoundedBorderFor(border.rect()).radii(),
+                                   horizontal, includeLogicalLeftEdge, includeLogicalRightEdge);
+        if (border.isRounded()) {
             graphicsContext->save();
-            graphicsContext->addRoundedRectClip(borderRect, topLeft, topRight, bottomLeft, bottomRight);
+            graphicsContext->addRoundedRectClip(border);
         }
     }
 
     int firstAngleStart, secondAngleStart, firstAngleSpan, secondAngleSpan;
     float thickness;
+    bool renderRadii = border.isRounded();
     bool upperLeftBorderStylesMatch = renderLeft && (topStyle == leftStyle) && (topColor == leftColor);
     bool upperRightBorderStylesMatch = renderRight && (topStyle == rightStyle) && (topColor == rightColor) && (topStyle != OUTSET) && (topStyle != RIDGE) && (topStyle != INSET) && (topStyle != GROOVE);
     bool lowerLeftBorderStylesMatch = renderLeft && (bottomStyle == leftStyle) && (bottomColor == leftColor) && (bottomStyle != OUTSET) && (bottomStyle != RIDGE) && (bottomStyle != INSET) && (bottomStyle != GROOVE);
     bool lowerRightBorderStylesMatch = renderRight && (bottomStyle == rightStyle) && (bottomColor == rightColor);
 
     if (renderTop) {
-        bool ignore_left = (renderRadii && topLeft.width() > 0) ||
-            (topColor == leftColor && topTransparent == leftTransparent && topStyle >= OUTSET &&
-             (leftStyle == DOTTED || leftStyle == DASHED || leftStyle == SOLID || leftStyle == OUTSET));
-
-        bool ignore_right = (renderRadii && topRight.width() > 0) ||
-            (topColor == rightColor && topTransparent == rightTransparent && topStyle >= OUTSET &&
-             (rightStyle == DOTTED || rightStyle == DASHED || rightStyle == SOLID || rightStyle == INSET));
+        bool ignoreLeft = (renderRadii && border.radii().topLeft().width() > 0)
+            || (topColor == leftColor && topTransparent == leftTransparent && topStyle >= OUTSET
+                && (leftStyle == DOTTED || leftStyle == DASHED || leftStyle == SOLID || leftStyle == OUTSET));
+        
+        bool ignoreRight = (renderRadii && border.radii().topRight().width() > 0)
+            || (topColor == rightColor && topTransparent == rightTransparent && topStyle >= OUTSET
+                && (rightStyle == DOTTED || rightStyle == DASHED || rightStyle == SOLID || rightStyle == INSET));
 
         int x = tx;
         int x2 = tx + w;
         if (renderRadii) {
-            x += topLeft.width();
-            x2 -= topRight.width();
+            x += border.radii().topLeft().width();
+            x2 -= border.radii().topRight().width();
         }
 
         drawLineForBoxSide(graphicsContext, x, ty, x2, ty + style->borderTopWidth(), BSTop, topColor, topStyle,
-                   ignore_left ? 0 : style->borderLeftWidth(), ignore_right ? 0 : style->borderRightWidth());
+                   ignoreLeft ? 0 : style->borderLeftWidth(), ignoreRight ? 0 : style->borderRightWidth());
 
         if (renderRadii) {
             int leftY = ty;
@@ -1277,15 +1208,15 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
             // with the arc-drawing function.
             thickness = style->borderTopWidth() * 2;
 
-            if (topLeft.width()) {
+            if (border.radii().topLeft().width()) {
                 int leftX = tx;
                 // The inner clip clips inside the arc. This is especially important for 1px borders.
-                bool applyLeftInnerClip = (style->borderLeftWidth() < topLeft.width())
-                    && (style->borderTopWidth() < topLeft.height())
+                bool applyLeftInnerClip = (style->borderLeftWidth() < border.radii().topLeft().width())
+                    && (style->borderTopWidth() < border.radii().topLeft().height())
                     && (topStyle != DOUBLE || style->borderTopWidth() > 6);
                 if (applyLeftInnerClip) {
                     graphicsContext->save();
-                    graphicsContext->addInnerRoundedRectClip(IntRect(leftX, leftY, topLeft.width() * 2, topLeft.height() * 2),
+                    graphicsContext->addInnerRoundedRectClip(IntRect(leftX, leftY, border.radii().topLeft().width() * 2, border.radii().topLeft().height() * 2),
                                                              style->borderTopWidth());
                 }
 
@@ -1293,20 +1224,20 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
                 firstAngleSpan = upperLeftBorderStylesMatch ? 90 : 45;
 
                 // Draw upper left arc
-                drawArcForBoxSide(graphicsContext, leftX, leftY, thickness, topLeft, firstAngleStart, firstAngleSpan,
+                drawArcForBoxSide(graphicsContext, leftX, leftY, thickness, border.radii().topLeft(), firstAngleStart, firstAngleSpan,
                               BSTop, topColor, topStyle, true);
                 if (applyLeftInnerClip)
                     graphicsContext->restore();
             }
 
-            if (topRight.width()) {
-                int rightX = tx + w - topRight.width() * 2;
-                bool applyRightInnerClip = (style->borderRightWidth() < topRight.width())
-                    && (style->borderTopWidth() < topRight.height())
+            if (border.radii().topRight().width()) {
+                int rightX = tx + w - border.radii().topRight().width() * 2;
+                bool applyRightInnerClip = (style->borderRightWidth() < border.radii().topRight().width())
+                    && (style->borderTopWidth() < border.radii().topRight().height())
                     && (topStyle != DOUBLE || style->borderTopWidth() > 6);
                 if (applyRightInnerClip) {
                     graphicsContext->save();
-                    graphicsContext->addInnerRoundedRectClip(IntRect(rightX, leftY, topRight.width() * 2, topRight.height() * 2),
+                    graphicsContext->addInnerRoundedRectClip(IntRect(rightX, leftY, border.radii().topRight().width() * 2, border.radii().topRight().height() * 2),
                                                              style->borderTopWidth());
                 }
 
@@ -1319,7 +1250,7 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
                 }
 
                 // Draw upper right arc
-                drawArcForBoxSide(graphicsContext, rightX, leftY, thickness, topRight, secondAngleStart, secondAngleSpan,
+                drawArcForBoxSide(graphicsContext, rightX, leftY, thickness, border.radii().topRight(), secondAngleStart, secondAngleSpan,
                               BSTop, topColor, topStyle, false);
                 if (applyRightInnerClip)
                     graphicsContext->restore();
@@ -1328,36 +1259,36 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
     }
 
     if (renderBottom) {
-        bool ignore_left = (renderRadii && bottomLeft.width() > 0) ||
-            (bottomColor == leftColor && bottomTransparent == leftTransparent && bottomStyle >= OUTSET &&
-             (leftStyle == DOTTED || leftStyle == DASHED || leftStyle == SOLID || leftStyle == OUTSET));
+        bool ignoreLeft = (renderRadii && border.radii().bottomLeft().width() > 0)
+            || (bottomColor == leftColor && bottomTransparent == leftTransparent && bottomStyle >= OUTSET
+                && (leftStyle == DOTTED || leftStyle == DASHED || leftStyle == SOLID || leftStyle == OUTSET));
 
-        bool ignore_right = (renderRadii && bottomRight.width() > 0) ||
-            (bottomColor == rightColor && bottomTransparent == rightTransparent && bottomStyle >= OUTSET &&
-             (rightStyle == DOTTED || rightStyle == DASHED || rightStyle == SOLID || rightStyle == INSET));
+        bool ignoreRight = (renderRadii && border.radii().bottomRight().width() > 0)
+            || (bottomColor == rightColor && bottomTransparent == rightTransparent && bottomStyle >= OUTSET
+                && (rightStyle == DOTTED || rightStyle == DASHED || rightStyle == SOLID || rightStyle == INSET));
 
         int x = tx;
         int x2 = tx + w;
         if (renderRadii) {
-            x += bottomLeft.width();
-            x2 -= bottomRight.width();
+            x += border.radii().bottomLeft().width();
+            x2 -= border.radii().bottomRight().width();
         }
 
         drawLineForBoxSide(graphicsContext, x, ty + h - style->borderBottomWidth(), x2, ty + h, BSBottom, bottomColor, bottomStyle,
-                   ignore_left ? 0 : style->borderLeftWidth(), ignore_right ? 0 : style->borderRightWidth());
+                   ignoreLeft ? 0 : style->borderLeftWidth(), ignoreRight ? 0 : style->borderRightWidth());
 
         if (renderRadii) {
             thickness = style->borderBottomWidth() * 2;
 
-            if (bottomLeft.width()) {
+            if (border.radii().bottomLeft().width()) {
                 int leftX = tx;
-                int leftY = ty + h - bottomLeft.height() * 2;
-                bool applyLeftInnerClip = (style->borderLeftWidth() < bottomLeft.width())
-                    && (style->borderBottomWidth() < bottomLeft.height())
+                int leftY = ty + h - border.radii().bottomLeft().height() * 2;
+                bool applyLeftInnerClip = (style->borderLeftWidth() < border.radii().bottomLeft().width())
+                    && (style->borderBottomWidth() < border.radii().bottomLeft().height())
                     && (bottomStyle != DOUBLE || style->borderBottomWidth() > 6);
                 if (applyLeftInnerClip) {
                     graphicsContext->save();
-                    graphicsContext->addInnerRoundedRectClip(IntRect(leftX, leftY, bottomLeft.width() * 2, bottomLeft.height() * 2),
+                    graphicsContext->addInnerRoundedRectClip(IntRect(leftX, leftY, border.radii().bottomLeft().width() * 2, border.radii().bottomLeft().height() * 2),
                                                              style->borderBottomWidth());
                 }
 
@@ -1370,21 +1301,21 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
                 }
 
                 // Draw lower left arc
-                drawArcForBoxSide(graphicsContext, leftX, leftY, thickness, bottomLeft, firstAngleStart, firstAngleSpan,
+                drawArcForBoxSide(graphicsContext, leftX, leftY, thickness, border.radii().bottomLeft(), firstAngleStart, firstAngleSpan,
                               BSBottom, bottomColor, bottomStyle, true);
                 if (applyLeftInnerClip)
                     graphicsContext->restore();
             }
 
-            if (bottomRight.width()) {
-                int rightY = ty + h - bottomRight.height() * 2;
-                int rightX = tx + w - bottomRight.width() * 2;
-                bool applyRightInnerClip = (style->borderRightWidth() < bottomRight.width())
-                    && (style->borderBottomWidth() < bottomRight.height())
+            if (border.radii().bottomRight().width()) {
+                int rightY = ty + h - border.radii().bottomRight().height() * 2;
+                int rightX = tx + w - border.radii().bottomRight().width() * 2;
+                bool applyRightInnerClip = (style->borderRightWidth() < border.radii().bottomRight().width())
+                    && (style->borderBottomWidth() < border.radii().bottomRight().height())
                     && (bottomStyle != DOUBLE || style->borderBottomWidth() > 6);
                 if (applyRightInnerClip) {
                     graphicsContext->save();
-                    graphicsContext->addInnerRoundedRectClip(IntRect(rightX, rightY, bottomRight.width() * 2, bottomRight.height() * 2),
+                    graphicsContext->addInnerRoundedRectClip(IntRect(rightX, rightY, border.radii().bottomRight().width() * 2, border.radii().bottomRight().height() * 2),
                                                              style->borderBottomWidth());
                 }
 
@@ -1392,7 +1323,7 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
                 secondAngleSpan = lowerRightBorderStylesMatch ? 90 : 45;
 
                 // Draw lower right arc
-                drawArcForBoxSide(graphicsContext, rightX, rightY, thickness, bottomRight, secondAngleStart, secondAngleSpan,
+                drawArcForBoxSide(graphicsContext, rightX, rightY, thickness, border.radii().bottomRight(), secondAngleStart, secondAngleSpan,
                               BSBottom, bottomColor, bottomStyle, false);
                 if (applyRightInnerClip)
                     graphicsContext->restore();
@@ -1401,36 +1332,36 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
     }
 
     if (renderLeft) {
-        bool ignore_top = (renderRadii && topLeft.height() > 0) ||
-            (topColor == leftColor && topTransparent == leftTransparent && leftStyle >= OUTSET &&
-             (topStyle == DOTTED || topStyle == DASHED || topStyle == SOLID || topStyle == OUTSET));
+        bool ignoreTop = (renderRadii && border.radii().topLeft().height() > 0)
+            || (topColor == leftColor && topTransparent == leftTransparent && leftStyle >= OUTSET
+                && (topStyle == DOTTED || topStyle == DASHED || topStyle == SOLID || topStyle == OUTSET));
 
-        bool ignore_bottom = (renderRadii && bottomLeft.height() > 0) ||
-            (bottomColor == leftColor && bottomTransparent == leftTransparent && leftStyle >= OUTSET &&
-             (bottomStyle == DOTTED || bottomStyle == DASHED || bottomStyle == SOLID || bottomStyle == INSET));
+        bool ignoreBottom = (renderRadii && border.radii().bottomLeft().height() > 0)
+            || (bottomColor == leftColor && bottomTransparent == leftTransparent && leftStyle >= OUTSET
+                && (bottomStyle == DOTTED || bottomStyle == DASHED || bottomStyle == SOLID || bottomStyle == INSET));
 
         int y = ty;
         int y2 = ty + h;
         if (renderRadii) {
-            y += topLeft.height();
-            y2 -= bottomLeft.height();
+            y += border.radii().topLeft().height();
+            y2 -= border.radii().bottomLeft().height();
         }
 
         drawLineForBoxSide(graphicsContext, tx, y, tx + style->borderLeftWidth(), y2, BSLeft, leftColor, leftStyle,
-                   ignore_top ? 0 : style->borderTopWidth(), ignore_bottom ? 0 : style->borderBottomWidth());
+                   ignoreTop ? 0 : style->borderTopWidth(), ignoreBottom ? 0 : style->borderBottomWidth());
 
         if (renderRadii && (!upperLeftBorderStylesMatch || !lowerLeftBorderStylesMatch)) {
             int topX = tx;
             thickness = style->borderLeftWidth() * 2;
 
-            if (!upperLeftBorderStylesMatch && topLeft.width()) {
+            if (!upperLeftBorderStylesMatch && border.radii().topLeft().width()) {
                 int topY = ty;
-                bool applyTopInnerClip = (style->borderLeftWidth() < topLeft.width())
-                    && (style->borderTopWidth() < topLeft.height())
+                bool applyTopInnerClip = (style->borderLeftWidth() < border.radii().topLeft().width())
+                    && (style->borderTopWidth() < border.radii().topLeft().height())
                     && (leftStyle != DOUBLE || style->borderLeftWidth() > 6);
                 if (applyTopInnerClip) {
                     graphicsContext->save();
-                    graphicsContext->addInnerRoundedRectClip(IntRect(topX, topY, topLeft.width() * 2, topLeft.height() * 2),
+                    graphicsContext->addInnerRoundedRectClip(IntRect(topX, topY, border.radii().topLeft().width() * 2, border.radii().topLeft().height() * 2),
                                                              style->borderLeftWidth());
                 }
 
@@ -1438,20 +1369,20 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
                 firstAngleSpan = 45;
 
                 // Draw top left arc
-                drawArcForBoxSide(graphicsContext, topX, topY, thickness, topLeft, firstAngleStart, firstAngleSpan,
+                drawArcForBoxSide(graphicsContext, topX, topY, thickness, border.radii().topLeft(), firstAngleStart, firstAngleSpan,
                               BSLeft, leftColor, leftStyle, true);
                 if (applyTopInnerClip)
                     graphicsContext->restore();
             }
 
-            if (!lowerLeftBorderStylesMatch && bottomLeft.width()) {
-                int bottomY = ty + h - bottomLeft.height() * 2;
-                bool applyBottomInnerClip = (style->borderLeftWidth() < bottomLeft.width())
-                    && (style->borderBottomWidth() < bottomLeft.height())
+            if (!lowerLeftBorderStylesMatch && border.radii().bottomLeft().width()) {
+                int bottomY = ty + h - border.radii().bottomLeft().height() * 2;
+                bool applyBottomInnerClip = (style->borderLeftWidth() < border.radii().bottomLeft().width())
+                    && (style->borderBottomWidth() < border.radii().bottomLeft().height())
                     && (leftStyle != DOUBLE || style->borderLeftWidth() > 6);
                 if (applyBottomInnerClip) {
                     graphicsContext->save();
-                    graphicsContext->addInnerRoundedRectClip(IntRect(topX, bottomY, bottomLeft.width() * 2, bottomLeft.height() * 2),
+                    graphicsContext->addInnerRoundedRectClip(IntRect(topX, bottomY, border.radii().bottomLeft().width() * 2, border.radii().bottomLeft().height() * 2),
                                                              style->borderLeftWidth());
                 }
 
@@ -1459,7 +1390,7 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
                 secondAngleSpan = 45;
 
                 // Draw bottom left arc
-                drawArcForBoxSide(graphicsContext, topX, bottomY, thickness, bottomLeft, secondAngleStart, secondAngleSpan,
+                drawArcForBoxSide(graphicsContext, topX, bottomY, thickness, border.radii().bottomLeft(), secondAngleStart, secondAngleSpan,
                               BSLeft, leftColor, leftStyle, false);
                 if (applyBottomInnerClip)
                     graphicsContext->restore();
@@ -1468,38 +1399,38 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
     }
 
     if (renderRight) {
-        bool ignore_top = (renderRadii && topRight.height() > 0) ||
-            ((topColor == rightColor) && (topTransparent == rightTransparent) &&
-            (rightStyle >= DOTTED || rightStyle == INSET) &&
-            (topStyle == DOTTED || topStyle == DASHED || topStyle == SOLID || topStyle == OUTSET));
+        bool ignoreTop = (renderRadii && border.radii().topRight().height() > 0)
+            || ((topColor == rightColor) && (topTransparent == rightTransparent)
+                && (rightStyle >= DOTTED || rightStyle == INSET)
+                && (topStyle == DOTTED || topStyle == DASHED || topStyle == SOLID || topStyle == OUTSET));
 
-        bool ignore_bottom = (renderRadii && bottomRight.height() > 0) ||
-            ((bottomColor == rightColor) && (bottomTransparent == rightTransparent) &&
-            (rightStyle >= DOTTED || rightStyle == INSET) &&
-            (bottomStyle == DOTTED || bottomStyle == DASHED || bottomStyle == SOLID || bottomStyle == INSET));
+        bool ignoreBottom = (renderRadii && border.radii().bottomRight().height() > 0)
+            || ((bottomColor == rightColor) && (bottomTransparent == rightTransparent)
+                && (rightStyle >= DOTTED || rightStyle == INSET)
+                && (bottomStyle == DOTTED || bottomStyle == DASHED || bottomStyle == SOLID || bottomStyle == INSET));
 
         int y = ty;
         int y2 = ty + h;
         if (renderRadii) {
-            y += topRight.height();
-            y2 -= bottomRight.height();
+            y += border.radii().topRight().height();
+            y2 -= border.radii().bottomRight().height();
         }
 
         drawLineForBoxSide(graphicsContext, tx + w - style->borderRightWidth(), y, tx + w, y2, BSRight, rightColor, rightStyle,
-                   ignore_top ? 0 : style->borderTopWidth(), ignore_bottom ? 0 : style->borderBottomWidth());
+                   ignoreTop ? 0 : style->borderTopWidth(), ignoreBottom ? 0 : style->borderBottomWidth());
 
         if (renderRadii && (!upperRightBorderStylesMatch || !lowerRightBorderStylesMatch)) {
             thickness = style->borderRightWidth() * 2;
 
-            if (!upperRightBorderStylesMatch && topRight.width()) {
-                int topX = tx + w - topRight.width() * 2;
+            if (!upperRightBorderStylesMatch && border.radii().topRight().width()) {
+                int topX = tx + w - border.radii().topRight().width() * 2;
                 int topY = ty;
-                bool applyTopInnerClip = (style->borderRightWidth() < topRight.width())
-                    && (style->borderTopWidth() < topRight.height())
+                bool applyTopInnerClip = (style->borderRightWidth() < border.radii().topRight().width())
+                    && (style->borderTopWidth() < border.radii().topRight().height())
                     && (rightStyle != DOUBLE || style->borderRightWidth() > 6);
                 if (applyTopInnerClip) {
                     graphicsContext->save();
-                    graphicsContext->addInnerRoundedRectClip(IntRect(topX, topY, topRight.width() * 2, topRight.height() * 2),
+                    graphicsContext->addInnerRoundedRectClip(IntRect(topX, topY, border.radii().topRight().width() * 2, border.radii().topRight().height() * 2),
                                                              style->borderRightWidth());
                 }
 
@@ -1507,21 +1438,21 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
                 firstAngleSpan = 45;
 
                 // Draw top right arc
-                drawArcForBoxSide(graphicsContext, topX, topY, thickness, topRight, firstAngleStart, firstAngleSpan,
+                drawArcForBoxSide(graphicsContext, topX, topY, thickness, border.radii().topRight(), firstAngleStart, firstAngleSpan,
                               BSRight, rightColor, rightStyle, true);
                 if (applyTopInnerClip)
                     graphicsContext->restore();
             }
 
-            if (!lowerRightBorderStylesMatch && bottomRight.width()) {
-                int bottomX = tx + w - bottomRight.width() * 2;
-                int bottomY = ty + h - bottomRight.height() * 2;
-                bool applyBottomInnerClip = (style->borderRightWidth() < bottomRight.width())
-                    && (style->borderBottomWidth() < bottomRight.height())
+            if (!lowerRightBorderStylesMatch && border.radii().bottomRight().width()) {
+                int bottomX = tx + w - border.radii().bottomRight().width() * 2;
+                int bottomY = ty + h - border.radii().bottomRight().height() * 2;
+                bool applyBottomInnerClip = (style->borderRightWidth() < border.radii().bottomRight().width())
+                    && (style->borderBottomWidth() < border.radii().bottomRight().height())
                     && (rightStyle != DOUBLE || style->borderRightWidth() > 6);
                 if (applyBottomInnerClip) {
                     graphicsContext->save();
-                    graphicsContext->addInnerRoundedRectClip(IntRect(bottomX, bottomY, bottomRight.width() * 2, bottomRight.height() * 2),
+                    graphicsContext->addInnerRoundedRectClip(IntRect(bottomX, bottomY, border.radii().bottomRight().width() * 2, border.radii().bottomRight().height() * 2),
                                                              style->borderRightWidth());
                 }
 
@@ -1529,7 +1460,7 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
                 secondAngleSpan = 45;
 
                 // Draw bottom right arc
-                drawArcForBoxSide(graphicsContext, bottomX, bottomY, thickness, bottomRight, secondAngleStart, secondAngleSpan,
+                drawArcForBoxSide(graphicsContext, bottomX, bottomY, thickness, border.radii().bottomRight(), secondAngleStart, secondAngleSpan,
                               BSRight, rightColor, rightStyle, false);
                 if (applyBottomInnerClip)
                     graphicsContext->restore();
@@ -1542,15 +1473,15 @@ void RenderBoxModelObject::paintBorder(GraphicsContext* graphicsContext, int tx,
 }
 #endif
 
-void RenderBoxModelObject::clipBorderSidePolygon(GraphicsContext* graphicsContext, const IntRect& box, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft, const IntSize& bottomRight,
+void RenderBoxModelObject::clipBorderSidePolygon(GraphicsContext* graphicsContext, const RoundedIntRect& border,
                                                  const BoxSide side, bool firstEdgeMatches, bool secondEdgeMatches, const RenderStyle* style,
                                                  bool includeLogicalLeftEdge, bool includeLogicalRightEdge)
 {
     FloatPoint quad[4];
-    int tx = box.x();
-    int ty = box.y();
-    int w = box.width();
-    int h = box.height();
+    int tx = border.rect().x();
+    int ty = border.rect().y();
+    int w = border.rect().width();
+    int h = border.rect().height();
 
     bool horizontal = style->isHorizontalWritingMode();
     int leftWidth = (!horizontal || includeLogicalLeftEdge) ? style->borderLeftWidth() : 0;
@@ -1563,26 +1494,26 @@ void RenderBoxModelObject::clipBorderSidePolygon(GraphicsContext* graphicsContex
     switch (side) {
     case BSTop:
         quad[0] = FloatPoint(tx, ty);
-        quad[1] = FloatPoint(tx + max(topLeft.width(), leftWidth), ty + max(topLeft.height(), topWidth));
-        quad[2] = FloatPoint(tx + w - max(topRight.width(), rightWidth), ty + max(topRight.height(), topWidth));
+        quad[1] = FloatPoint(tx + max(border.radii().topLeft().width(), leftWidth), ty + max(border.radii().topLeft().height(), topWidth));
+        quad[2] = FloatPoint(tx + w - max(border.radii().topRight().width(), rightWidth), ty + max(border.radii().topRight().height(), topWidth));
         quad[3] = FloatPoint(tx + w, ty);
         break;
     case BSLeft:
         quad[0] = FloatPoint(tx, ty);
-        quad[1] = FloatPoint(tx + max(topLeft.width(), leftWidth), ty + max(topLeft.height(), topWidth));
-        quad[2] = FloatPoint(tx + max(bottomLeft.width(), leftWidth), ty + h - max(bottomLeft.height(), bottomWidth));
+        quad[1] = FloatPoint(tx + max(border.radii().topLeft().width(), leftWidth), ty + max(border.radii().topLeft().height(), topWidth));
+        quad[2] = FloatPoint(tx + max(border.radii().bottomLeft().width(), leftWidth), ty + h - max(border.radii().bottomLeft().height(), bottomWidth));
         quad[3] = FloatPoint(tx, ty + h);
         break;
     case BSBottom:
         quad[0] = FloatPoint(tx, ty + h);
-        quad[1] = FloatPoint(tx + max(bottomLeft.width(), leftWidth), ty + h - max(bottomLeft.height(), bottomWidth));
-        quad[2] = FloatPoint(tx + w - max(bottomRight.width(), rightWidth), ty + h - max(bottomRight.height(), bottomWidth));
+        quad[1] = FloatPoint(tx + max(border.radii().bottomLeft().width(), leftWidth), ty + h - max(border.radii().bottomLeft().height(), bottomWidth));
+        quad[2] = FloatPoint(tx + w - max(border.radii().bottomRight().width(), rightWidth), ty + h - max(border.radii().bottomRight().height(), bottomWidth));
         quad[3] = FloatPoint(tx + w, ty + h);
         break;
     case BSRight:
         quad[0] = FloatPoint(tx + w, ty);
-        quad[1] = FloatPoint(tx + w - max(topRight.width(), rightWidth), ty + max(topRight.height(), topWidth));
-        quad[2] = FloatPoint(tx + w - max(bottomRight.width(), rightWidth), ty + h - max(bottomRight.height(), bottomWidth));
+        quad[1] = FloatPoint(tx + w - max(border.radii().topRight().width(), rightWidth), ty + max(border.radii().topRight().height(), topWidth));
+        quad[2] = FloatPoint(tx + w - max(border.radii().bottomRight().width(), rightWidth), ty + h - max(border.radii().bottomRight().height(), bottomWidth));
         quad[3] = FloatPoint(tx + w, ty + h);
         break;
     default:
@@ -1613,18 +1544,6 @@ void RenderBoxModelObject::clipBorderSidePolygon(GraphicsContext* graphicsContex
     graphicsContext->clipConvexPolygon(4, secondQuad, !secondEdgeMatches);
 }
 
-static inline void uniformlyExpandBorderRadii(int delta, IntSize& topLeft, IntSize& topRight, IntSize& bottomLeft, IntSize& bottomRight)
-{
-    topLeft.expand(delta, delta);
-    topLeft.clampNegativeToZero();
-    topRight.expand(delta, delta);
-    topRight.clampNegativeToZero();
-    bottomLeft.expand(delta, delta);
-    bottomLeft.clampNegativeToZero();
-    bottomRight.expand(delta, delta);
-    bottomRight.clampNegativeToZero();
-}
-
 void RenderBoxModelObject::paintBoxShadow(GraphicsContext* context, int tx, int ty, int w, int h, const RenderStyle* s, ShadowStyle shadowStyle, bool includeLogicalLeftEdge, bool includeLogicalRightEdge)
 {
     // FIXME: Deal with border-image.  Would be great to use border-image as a mask.
@@ -1632,61 +1551,19 @@ void RenderBoxModelObject::paintBoxShadow(GraphicsContext* context, int tx, int
     if (context->paintingDisabled())
         return;
 
-    IntRect rect(tx, ty, w, h);
-    IntSize topLeft;
-    IntSize topRight;
-    IntSize bottomLeft;
-    IntSize bottomRight;
-
+    RoundedIntRect border(tx, ty, w, h);
     bool hasBorderRadius = s->hasBorderRadius();
     bool isHorizontal = s->isHorizontalWritingMode();
     if (hasBorderRadius && (includeLogicalLeftEdge || includeLogicalRightEdge)) {
-        IntSize topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius;
-        s->getBorderRadiiForRect(rect, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
-
-        if (includeLogicalLeftEdge) {
-            if (shadowStyle == Inset) {
-                topLeftRadius.expand(-borderLeft(), -borderTop());
-                topLeftRadius.clampNegativeToZero();
-                if (isHorizontal) {
-                    bottomLeftRadius.expand(-borderLeft(), -borderBottom());
-                    bottomLeftRadius.clampNegativeToZero();
-                } else {
-                    topRightRadius.expand(-borderRight(), -borderTop());
-                    topRightRadius.clampNegativeToZero();
-                }
-            }
-            topLeft = topLeftRadius;
-            if (isHorizontal)
-                bottomLeft = bottomLeftRadius;
-            else
-                topRight = topRightRadius;
-        }
-        if (includeLogicalRightEdge) {
-            if (shadowStyle == Inset) {
-                if (isHorizontal) {
-                    topRightRadius.expand(-borderRight(), -borderTop());
-                    topRightRadius.clampNegativeToZero();
-                } else {
-                    bottomLeftRadius.expand(-borderLeft(), -borderBottom());
-                    bottomLeftRadius.clampNegativeToZero();
-                }
-                bottomRightRadius.expand(-borderRight(), -borderBottom());
-                bottomRightRadius.clampNegativeToZero();
-            }
-            if (isHorizontal)
-                topRight = topRightRadius;
-            else
-                bottomLeft = bottomLeftRadius;
-            bottomRight = bottomRightRadius;
-        }
-    }
-
-    if (shadowStyle == Inset) {
-        rect.move(includeLogicalLeftEdge || !isHorizontal ? borderLeft() : 0, includeLogicalLeftEdge || isHorizontal ? borderTop() : 0);
-        rect.setWidth(rect.width() - ((includeLogicalLeftEdge || !isHorizontal) ? borderLeft() : 0) - ((includeLogicalRightEdge || !isHorizontal) ? borderRight() : 0));
-        rect.setHeight(rect.height() - ((includeLogicalLeftEdge || isHorizontal) ? borderTop() : 0) - ((includeLogicalRightEdge || isHorizontal) ? borderBottom() : 0));
+        border = (shadowStyle == Inset) ? s->getRoundedInnerBorderWithBorderWidths(border.rect(), borderTop(), borderBottom(), borderLeft(), borderRight()) : s->getRoundedBorderFor(border.rect());
+        border.includeLogicalEdges(border.radii(), isHorizontal, includeLogicalLeftEdge, includeLogicalRightEdge);
     }
+   
+    if (shadowStyle == Inset)
+        border.setRect(IntRect(border.rect().x() + (includeLogicalLeftEdge || !isHorizontal ? borderLeft() : 0),
+                               border.rect().y() + (includeLogicalLeftEdge || isHorizontal ? borderTop() : 0),
+                               border.rect().width() - ((includeLogicalLeftEdge || !isHorizontal) ? borderLeft() : 0) - ((includeLogicalRightEdge || !isHorizontal) ? borderRight() : 0),
+                               border.rect().height() - ((includeLogicalLeftEdge || isHorizontal) ? borderTop() : 0) - ((includeLogicalRightEdge || isHorizontal) ? borderBottom() : 0)));
 
     bool hasOpaqueBackground = s->visitedDependentColor(CSSPropertyBackgroundColor).isValid() && s->visitedDependentColor(CSSPropertyBackgroundColor).alpha() == 255;
     for (const ShadowData* shadow = s->boxShadow(); shadow; shadow = shadow->next()) {
@@ -1699,12 +1576,12 @@ void RenderBoxModelObject::paintBoxShadow(GraphicsContext* context, int tx, int
         const Color& shadowColor = shadow->color();
 
         if (shadow->style() == Normal) {
-            IntRect fillRect(rect);
+            RoundedIntRect fillRect = border;
             fillRect.inflate(shadowSpread);
             if (fillRect.isEmpty())
                 continue;
 
-            IntRect shadowRect(rect);
+            IntRect shadowRect(border.rect());
             shadowRect.inflate(shadowBlur + shadowSpread);
             shadowRect.move(shadowOffset);
 
@@ -1719,32 +1596,23 @@ void RenderBoxModelObject::paintBoxShadow(GraphicsContext* context, int tx, int
 
             context->setShadow(shadowOffset, shadowBlur, shadowColor, s->colorSpace());
             if (hasBorderRadius) {
-                IntRect rectToClipOut = rect;
-                IntSize topLeftToClipOut = topLeft;
-                IntSize topRightToClipOut = topRight;
-                IntSize bottomLeftToClipOut = bottomLeft;
-                IntSize bottomRightToClipOut = bottomRight;
-
-                IntSize topLeftToFill = topLeft;
-                IntSize topRightToFill = topRight;
-                IntSize bottomLeftToFill  = bottomLeft;
-                IntSize bottomRightToFill = bottomRight;
-                if (shadowSpread < 0)
-                    uniformlyExpandBorderRadii(shadowSpread, topLeftToFill, topRightToFill, bottomLeftToFill, bottomRightToFill);
+                RoundedIntRect rectToClipOut = border;
 
                 // If the box is opaque, it is unnecessary to clip it out. However, doing so saves time
                 // when painting the shadow. On the other hand, it introduces subpixel gaps along the
                 // corners. Those are avoided by insetting the clipping path by one pixel.
                 if (hasOpaqueBackground) {
-                    rectToClipOut.inflate(-1);
-                    uniformlyExpandBorderRadii(-1, topLeftToClipOut, topRightToClipOut, bottomLeftToClipOut, bottomRightToClipOut);
+                    rectToClipOut.inflateWithRadii(-1);
                 }
 
                 if (!rectToClipOut.isEmpty())
-                    context->clipOutRoundedRect(rectToClipOut, topLeftToClipOut, topRightToClipOut, bottomLeftToClipOut, bottomRightToClipOut);
-                context->fillRoundedRect(fillRect, topLeftToFill, topRightToFill, bottomLeftToFill, bottomRightToFill, Color::black, s->colorSpace());
+                    context->clipOutRoundedRect(rectToClipOut);
+
+                if (shadowSpread < 0)
+                    fillRect.expandRadii(shadowSpread);
+                context->fillRoundedRect(fillRect, Color::black, s->colorSpace());
             } else {
-                IntRect rectToClipOut = rect;
+                IntRect rectToClipOut = border.rect();
 
                 // If the box is opaque, it is unnecessary to clip it out. However, doing so saves time
                 // when painting the shadow. On the other hand, it introduces subpixel gaps along the
@@ -1759,20 +1627,20 @@ void RenderBoxModelObject::paintBoxShadow(GraphicsContext* context, int tx, int
 
                 if (!rectToClipOut.isEmpty())
                     context->clipOut(rectToClipOut);
-                context->fillRect(fillRect, Color::black, s->colorSpace());
+                context->fillRect(fillRect.rect(), Color::black, s->colorSpace());
             }
 
             context->restore();
         } else {
             // Inset shadow.
-            IntRect holeRect(rect);
+            IntRect holeRect(border.rect());
             holeRect.inflate(-shadowSpread);
 
             if (holeRect.isEmpty()) {
                 if (hasBorderRadius)
-                    context->fillRoundedRect(rect, topLeft, topRight, bottomLeft, bottomRight, shadowColor, s->colorSpace());
+                    context->fillRoundedRect(border, shadowColor, s->colorSpace());
                 else
-                    context->fillRect(rect, shadowColor, s->colorSpace());
+                    context->fillRect(border.rect(), shadowColor, s->colorSpace());
                 continue;
             }
 
@@ -1794,7 +1662,7 @@ void RenderBoxModelObject::paintBoxShadow(GraphicsContext* context, int tx, int
 
             Color fillColor(shadowColor.red(), shadowColor.green(), shadowColor.blue(), 255);
 
-            IntRect outerRect(rect);
+            IntRect outerRect(border.rect());
             outerRect.inflateX(w - 2 * shadowSpread);
             outerRect.inflateY(h - 2 * shadowSpread);
 
@@ -1802,11 +1670,11 @@ void RenderBoxModelObject::paintBoxShadow(GraphicsContext* context, int tx, int
 
             Path path;
             if (hasBorderRadius) {
-                path.addRoundedRect(rect, topLeft, topRight, bottomLeft, bottomRight);
+                path.addRoundedRect(border.rect(), border.radii().topLeft(), border.radii().topRight(), border.radii().bottomLeft(), border.radii().bottomRight());
                 context->clip(path);
                 path.clear();
             } else
-                context->clip(rect);
+                context->clip(border.rect());
 
             IntSize extraOffset(2 * w + max(0, shadowOffset.width()) + shadowBlur - 2 * shadowSpread + 1, 0);
             context->translate(extraOffset.width(), extraOffset.height());
@@ -1816,8 +1684,8 @@ void RenderBoxModelObject::paintBoxShadow(GraphicsContext* context, int tx, int
 
             if (hasBorderRadius) {
                 if (shadowSpread > 0)
-                    uniformlyExpandBorderRadii(-shadowSpread, topLeft, topRight, bottomLeft, bottomRight);
-                path.addRoundedRect(holeRect, topLeft, topRight, bottomLeft, bottomRight);
+                    border.shrinkRadii(shadowSpread);
+                path.addRoundedRect(holeRect, border.radii().topLeft(), border.radii().topRight(), border.radii().bottomLeft(), border.radii().bottomRight());
             } else
                 path.addRect(holeRect);
 
diff --git a/Source/WebCore/rendering/RenderBoxModelObject.h b/Source/WebCore/rendering/RenderBoxModelObject.h
index 8f9f465..f6bcb94 100644
--- a/Source/WebCore/rendering/RenderBoxModelObject.h
+++ b/Source/WebCore/rendering/RenderBoxModelObject.h
@@ -134,8 +134,8 @@ private:
 
     IntSize calculateFillTileSize(const FillLayer*, IntSize scaledSize) const;
 
-    void clipBorderSidePolygon(GraphicsContext*, const IntRect&, const IntSize& topLeft, const IntSize& topRight, const IntSize& bottomLeft,
-                               const IntSize& bottomRight, const BoxSide side, bool firstEdgeMatches, bool secondEdgeMatches, const RenderStyle* style,
+    void clipBorderSidePolygon(GraphicsContext*, const RoundedIntRect& border,
+                               const BoxSide, bool firstEdgeMatches, bool secondEdgeMatches, const RenderStyle*,
                                bool includeLogicalLeftEdge, bool includeLogicalRightEdge);
 
     friend class RenderView;
diff --git a/Source/WebCore/rendering/RenderObject.cpp b/Source/WebCore/rendering/RenderObject.cpp
index 97ac5c3..5b39e0d 100644
--- a/Source/WebCore/rendering/RenderObject.cpp
+++ b/Source/WebCore/rendering/RenderObject.cpp
@@ -979,36 +979,24 @@ void RenderObject::drawBoxSideFromPath(GraphicsContext* graphicsContext, IntRect
             innerBorderLeftWidth += 1;
 
         // Get the inner border rects for both the outer border line and the inner border line
-        IntRect outerBorderInnerRect = borderInnerRect(borderRect, outerBorderTopWidth, outerBorderBottomWidth, 
-            outerBorderLeftWidth, outerBorderRightWidth);
-        IntRect innerBorderInnerRect = borderInnerRect(borderRect, innerBorderTopWidth, innerBorderBottomWidth, 
-            innerBorderLeftWidth, innerBorderRightWidth);
-
-        // Get the inner radii for the outer border line
-        IntSize outerBorderTopLeftInnerRadius, outerBorderTopRightInnerRadius, outerBorderBottomLeftInnerRadius, 
-            outerBorderBottomRightInnerRadius;
-        style->getInnerBorderRadiiForRectWithBorderWidths(outerBorderInnerRect, outerBorderTopWidth, outerBorderBottomWidth, 
-            outerBorderLeftWidth, outerBorderRightWidth, outerBorderTopLeftInnerRadius, outerBorderTopRightInnerRadius, 
-            outerBorderBottomLeftInnerRadius, outerBorderBottomRightInnerRadius);
-
-        // Get the inner radii for the inner border line
-        IntSize innerBorderTopLeftInnerRadius, innerBorderTopRightInnerRadius, innerBorderBottomLeftInnerRadius, 
-            innerBorderBottomRightInnerRadius;
-        style->getInnerBorderRadiiForRectWithBorderWidths(innerBorderInnerRect, innerBorderTopWidth, innerBorderBottomWidth, 
-            innerBorderLeftWidth, innerBorderRightWidth, innerBorderTopLeftInnerRadius, innerBorderTopRightInnerRadius, 
-            innerBorderBottomLeftInnerRadius, innerBorderBottomRightInnerRadius);
 
         // Draw inner border line
         graphicsContext->save();
-        graphicsContext->addRoundedRectClip(innerBorderInnerRect, innerBorderTopLeftInnerRadius, 
-            innerBorderTopRightInnerRadius, innerBorderBottomLeftInnerRadius, innerBorderBottomRightInnerRadius);
+        IntRect innerBorderInnerRect = borderInnerRect(borderRect, innerBorderTopWidth, innerBorderBottomWidth, 
+                                                       innerBorderLeftWidth, innerBorderRightWidth);
+        RoundedIntRect innerClip = style->getRoundedInnerBorderWithBorderWidths(innerBorderInnerRect, innerBorderTopWidth, innerBorderBottomWidth,
+                                                                                innerBorderLeftWidth, innerBorderRightWidth);
+        graphicsContext->addRoundedRectClip(innerClip);
         drawBoxSideFromPath(graphicsContext, borderRect, borderPath, thickness, drawThickness, s, style, c, SOLID);
         graphicsContext->restore();
 
         // Draw outer border line
         graphicsContext->save();
-        graphicsContext->clipOutRoundedRect(outerBorderInnerRect, outerBorderTopLeftInnerRadius, 
-            outerBorderTopRightInnerRadius, outerBorderBottomLeftInnerRadius, outerBorderBottomRightInnerRadius);
+        IntRect outerBorderInnerRect = borderInnerRect(borderRect, outerBorderTopWidth, outerBorderBottomWidth, 
+                                                       outerBorderLeftWidth, outerBorderRightWidth);
+        RoundedIntRect outerClip = style->getRoundedInnerBorderWithBorderWidths(outerBorderInnerRect, outerBorderTopWidth, outerBorderBottomWidth, 
+                                                                                outerBorderLeftWidth, outerBorderRightWidth);
+        graphicsContext->clipOutRoundedRect(outerClip);
         drawBoxSideFromPath(graphicsContext, borderRect, borderPath, thickness, drawThickness, s, style, c, SOLID);
         graphicsContext->restore();
 
@@ -1030,18 +1018,14 @@ void RenderObject::drawBoxSideFromPath(GraphicsContext* graphicsContext, IntRect
         IntRect halfBorderRect = borderInnerRect(borderRect, style->borderLeftWidth() / 2, style->borderBottomWidth() / 2, 
             style->borderLeftWidth() / 2, style->borderRightWidth() / 2);
 
-        IntSize topLeftHalfRadius, topRightHalfRadius, bottomLeftHalfRadius, bottomRightHalfRadius;
-        style->getInnerBorderRadiiForRectWithBorderWidths(halfBorderRect, style->borderLeftWidth() / 2, 
-            style->borderBottomWidth() / 2, style->borderLeftWidth() / 2, style->borderRightWidth() / 2, 
-            topLeftHalfRadius, topRightHalfRadius, bottomLeftHalfRadius, bottomRightHalfRadius);
-
         // Paint full border
         drawBoxSideFromPath(graphicsContext, borderRect, borderPath, thickness, drawThickness, s, style, c, s1);
 
         // Paint inner only
         graphicsContext->save();
-        graphicsContext->addRoundedRectClip(halfBorderRect, topLeftHalfRadius, topRightHalfRadius,
-            bottomLeftHalfRadius, bottomRightHalfRadius);
+        RoundedIntRect clipRect = style->getRoundedInnerBorderWithBorderWidths(halfBorderRect, style->borderLeftWidth() / 2, style->borderBottomWidth() / 2, 
+                                                                               style->borderLeftWidth() / 2, style->borderRightWidth() / 2);
+        graphicsContext->addRoundedRectClip(clipRect);
         drawBoxSideFromPath(graphicsContext, borderRect, borderPath, thickness, drawThickness, s, style, c, s2);
         graphicsContext->restore();
 
diff --git a/Source/WebCore/rendering/RenderReplaced.cpp b/Source/WebCore/rendering/RenderReplaced.cpp
index 974a8d0..0d72f95 100644
--- a/Source/WebCore/rendering/RenderReplaced.cpp
+++ b/Source/WebCore/rendering/RenderReplaced.cpp
@@ -135,11 +135,7 @@ void RenderReplaced::paint(PaintInfo& paintInfo, int tx, int ty)
         else {
             // Push a clip if we have a border radius, since we want to round the foreground content that gets painted.
             paintInfo.context->save();
-            
-            IntSize topLeft, topRight, bottomLeft, bottomRight;
-            style()->getBorderRadiiForRect(borderRect, topLeft, topRight, bottomLeft, bottomRight);
-
-            paintInfo.context->addRoundedRectClip(borderRect, topLeft, topRight, bottomLeft, bottomRight);
+            paintInfo.context->addRoundedRectClip(style()->getRoundedBorderFor(borderRect));
         }
     }
 
diff --git a/Source/WebCore/rendering/RenderThemeChromiumWin.cpp b/Source/WebCore/rendering/RenderThemeChromiumWin.cpp
index 5b41ea2..572aa2f 100644
--- a/Source/WebCore/rendering/RenderThemeChromiumWin.cpp
+++ b/Source/WebCore/rendering/RenderThemeChromiumWin.cpp
@@ -676,9 +676,7 @@ bool RenderThemeChromiumWin::paintTextFieldInternal(RenderObject* o,
         // background (themed or filled) appropriately.
         // FIXME: make sure we do the right thing if css background-clip is set.
         i.context->save();
-        IntSize topLeft, topRight, bottomLeft, bottomRight;
-        o->style()->getBorderRadiiForRect(r, topLeft, topRight, bottomLeft, bottomRight);
-        i.context->addRoundedRectClip(r, topLeft, topRight, bottomLeft, bottomRight);
+        i.context->addRoundedRectClip(o->style()->getRoundedBorderFor(r));
     }
     {
         const ThemeData& themeData = getThemeData(o);
diff --git a/Source/WebCore/rendering/RenderThemeMac.mm b/Source/WebCore/rendering/RenderThemeMac.mm
index 0764093..605e958 100644
--- a/Source/WebCore/rendering/RenderThemeMac.mm
+++ b/Source/WebCore/rendering/RenderThemeMac.mm
@@ -1033,14 +1033,8 @@ void RenderThemeMac::paintMenuListButtonGradients(RenderObject* o, const PaintIn
 
     paintInfo.context->save();
 
-    IntSize topLeftRadius;
-    IntSize topRightRadius;
-    IntSize bottomLeftRadius;
-    IntSize bottomRightRadius;
-
-    o->style()->getBorderRadiiForRect(r, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
-
-    int radius = topLeftRadius.width();
+    RoundedIntRect border = o->style()->getRoundedBorderFor(r);
+    int radius = border.radii().topLeft().width();
 
     CGColorSpaceRef cspace = deviceRGBColorSpaceRef();
 
@@ -1063,27 +1057,27 @@ void RenderThemeMac::paintMenuListButtonGradients(RenderObject* o, const PaintIn
     RetainPtr<CGShadingRef> rightShading(AdoptCF, CGShadingCreateAxial(cspace, CGPointMake(r.right(),  r.y()), CGPointMake(r.right() - radius, r.y()), mainFunction.get(), false, false));
     paintInfo.context->save();
     CGContextClipToRect(context, r);
-    paintInfo.context->addRoundedRectClip(r, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
+    paintInfo.context->addRoundedRectClip(border);
     CGContextDrawShading(context, mainShading.get());
     paintInfo.context->restore();
 
     paintInfo.context->save();
     CGContextClipToRect(context, topGradient);
-    paintInfo.context->addRoundedRectClip(enclosingIntRect(topGradient), topLeftRadius, topRightRadius, IntSize(), IntSize());
+    paintInfo.context->addRoundedRectClip(RoundedIntRect(enclosingIntRect(topGradient), border.radii().topLeft(), border.radii().topRight(), IntSize(), IntSize()));
     CGContextDrawShading(context, topShading.get());
     paintInfo.context->restore();
 
     if (!bottomGradient.isEmpty()) {
         paintInfo.context->save();
         CGContextClipToRect(context, bottomGradient);
-        paintInfo.context->addRoundedRectClip(enclosingIntRect(bottomGradient), IntSize(), IntSize(), bottomLeftRadius, bottomRightRadius);
+        paintInfo.context->addRoundedRectClip(RoundedIntRect(enclosingIntRect(bottomGradient), IntSize(), IntSize(), border.radii().bottomLeft(), border.radii().bottomRight()));
         CGContextDrawShading(context, bottomShading.get());
         paintInfo.context->restore();
     }
 
     paintInfo.context->save();
     CGContextClipToRect(context, r);
-    paintInfo.context->addRoundedRectClip(r, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
+    paintInfo.context->addRoundedRectClip(border);
     CGContextDrawShading(context, leftShading.get());
     CGContextDrawShading(context, rightShading.get());
     paintInfo.context->restore();
@@ -1304,9 +1298,7 @@ bool RenderThemeMac::paintSliderTrack(RenderObject* o, const PaintInfo& paintInf
         mainShading.adoptCF(CGShadingCreateAxial(cspace, CGPointMake(bounds.x(),  bounds.y()), CGPointMake(bounds.x(), bounds.bottom()), mainFunction.get(), false, false));
 
     IntSize radius(trackRadius, trackRadius);
-    paintInfo.context->addRoundedRectClip(bounds,
-        radius, radius,
-        radius, radius);
+    paintInfo.context->addRoundedRectClip(RoundedIntRect(bounds, radius, radius, radius, radius));
     CGContextDrawShading(context, mainShading.get());
     paintInfo.context->restore();
     
diff --git a/Source/WebCore/rendering/RenderThemeSafari.cpp b/Source/WebCore/rendering/RenderThemeSafari.cpp
index 3c1dedc..47f627e 100644
--- a/Source/WebCore/rendering/RenderThemeSafari.cpp
+++ b/Source/WebCore/rendering/RenderThemeSafari.cpp
@@ -752,14 +752,8 @@ void RenderThemeSafari::paintMenuListButtonGradients(RenderObject* o, const Pain
 
     paintInfo.context->save();
 
-    IntSize topLeftRadius;
-    IntSize topRightRadius;
-    IntSize bottomLeftRadius;
-    IntSize bottomRightRadius;
-
-    o->style()->getBorderRadiiForRect(r, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
-
-    int radius = topLeftRadius.width();
+    RoundedIntRect bound = o->style()->getRoundedBorderFor(r);
+    int radius = bound.radii().topLeft().width();
 
     CGColorSpaceRef cspace = deviceRGBColorSpaceRef();
 
@@ -781,28 +775,28 @@ void RenderThemeSafari::paintMenuListButtonGradients(RenderObject* o, const Pain
 
     RetainPtr<CGShadingRef> rightShading(AdoptCF, CGShadingCreateAxial(cspace, CGPointMake(r.right(),  r.y()), CGPointMake(r.right() - radius, r.y()), mainFunction.get(), false, false));
     paintInfo.context->save();
-    CGContextClipToRect(context, r);
-    paintInfo.context->addRoundedRectClip(r, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
+    CGContextClipToRect(context, bound.rect());
+    paintInfo.context->addRoundedRectClip(bound);
     CGContextDrawShading(context, mainShading.get());
     paintInfo.context->restore();
 
     paintInfo.context->save();
     CGContextClipToRect(context, topGradient);
-    paintInfo.context->addRoundedRectClip(enclosingIntRect(topGradient), topLeftRadius, topRightRadius, IntSize(), IntSize());
+    paintInfo.context->addRoundedRectClip(RoundedIntRect(enclosingIntRect(topGradient), bound.radii().topLeft(), bound.radii().topRight(), IntSize(), IntSize()));
     CGContextDrawShading(context, topShading.get());
     paintInfo.context->restore();
 
     if (!bottomGradient.isEmpty()) {
         paintInfo.context->save();
         CGContextClipToRect(context, bottomGradient);
-        paintInfo.context->addRoundedRectClip(enclosingIntRect(bottomGradient), IntSize(), IntSize(), bottomLeftRadius, bottomRightRadius);
+        paintInfo.context->addRoundedRectClip(RoundedIntRect(enclosingIntRect(bottomGradient), IntSize(), IntSize(), bound.radii().bottomLeft(), bound.radii().bottomRight()));
         CGContextDrawShading(context, bottomShading.get());
         paintInfo.context->restore();
     }
 
     paintInfo.context->save();
-    CGContextClipToRect(context, r);
-    paintInfo.context->addRoundedRectClip(r, topLeftRadius, topRightRadius, bottomLeftRadius, bottomRightRadius);
+    CGContextClipToRect(context, bound.rect());
+    paintInfo.context->addRoundedRectClip(bound);
     CGContextDrawShading(context, leftShading.get());
     CGContextDrawShading(context, rightShading.get());
     paintInfo.context->restore();
@@ -958,34 +952,35 @@ const int trackRadius = 2;
 
 bool RenderThemeSafari::paintSliderTrack(RenderObject* o, const PaintInfo& paintInfo, const IntRect& r)
 {
-    IntRect bounds = r;
-
-    if (o->style()->appearance() ==  SliderHorizontalPart) {
-        bounds.setHeight(trackWidth);
-        bounds.setY(r.y() + r.height() / 2 - trackWidth / 2);
-    } else if (o->style()->appearance() == SliderVerticalPart) {
-        bounds.setWidth(trackWidth);
-        bounds.setX(r.x() + r.width() / 2 - trackWidth / 2);
-    }
+    IntSize radius(trackRadius, trackRadius);
+    RoundedIntRect bounds(r, radius, radius, radius, radius);
+
+    if (o->style()->appearance() ==  SliderHorizontalPart)
+        bounds.setRect(IntRect(r.x(),
+                               r.y() + r.height() / 2 - trackWidth / 2,
+                               r.width(),
+                               trackWidth));
+    else if (o->style()->appearance() == SliderVerticalPart)
+        bounds.setRect(IntRect(r.x() + r.width() / 2 - trackWidth / 2,
+                               r.y(),
+                               trackWidth, 
+                               r.height()));
 
     CGContextRef context = paintInfo.context->platformContext();
     CGColorSpaceRef cspace = deviceRGBColorSpaceRef();
 
     paintInfo.context->save();
-    CGContextClipToRect(context, bounds);
+    CGContextClipToRect(context, bounds.rect());
 
     struct CGFunctionCallbacks mainCallbacks = { 0, TrackGradientInterpolate, NULL };
     RetainPtr<CGFunctionRef> mainFunction(AdoptCF, CGFunctionCreate(NULL, 1, NULL, 4, NULL, &mainCallbacks));
     RetainPtr<CGShadingRef> mainShading;
     if (o->style()->appearance() == SliderVerticalPart)
-        mainShading.adoptCF(CGShadingCreateAxial(cspace, CGPointMake(bounds.x(),  bounds.bottom()), CGPointMake(bounds.right(), bounds.bottom()), mainFunction.get(), false, false));
+        mainShading.adoptCF(CGShadingCreateAxial(cspace, CGPointMake(bounds.rect().x(),  bounds.rect().bottom()), CGPointMake(bounds.rect().right(), bounds.rect().bottom()), mainFunction.get(), false, false));
     else
-        mainShading.adoptCF(CGShadingCreateAxial(cspace, CGPointMake(bounds.x(),  bounds.y()), CGPointMake(bounds.x(), bounds.bottom()), mainFunction.get(), false, false));
+        mainShading.adoptCF(CGShadingCreateAxial(cspace, CGPointMake(bounds.rect().x(),  bounds.rect().y()), CGPointMake(bounds.rect().x(), bounds.rect().bottom()), mainFunction.get(), false, false));
 
-    IntSize radius(trackRadius, trackRadius);
-    paintInfo.context->addRoundedRectClip(bounds,
-        radius, radius,
-        radius, radius);
+    paintInfo.context->addRoundedRectClip(bounds);
     CGContextDrawShading(context, mainShading.get());
     paintInfo.context->restore();
     
diff --git a/Source/WebCore/rendering/RenderThemeWinCE.cpp b/Source/WebCore/rendering/RenderThemeWinCE.cpp
index 2c55f31..d4bff96 100644
--- a/Source/WebCore/rendering/RenderThemeWinCE.cpp
+++ b/Source/WebCore/rendering/RenderThemeWinCE.cpp
@@ -378,7 +378,7 @@ bool RenderThemeWinCE::paintSearchFieldCancelButton(RenderObject* o, const Paint
     int y = r.y() + (r.height() - cancelSize.height()) / 2 + 1;
     IntRect cancelBounds(IntPoint(x, y), cancelSize);
     paintInfo.context->save();
-    paintInfo.context->addRoundedRectClip(cancelBounds, cancelRadius, cancelRadius, cancelRadius, cancelRadius);
+    paintInfo.context->addRoundedRectClip(RoundedIntRect(cancelBounds, cancelRadius, cancelRadius, cancelRadius, cancelRadius));
     paintInfo.context->fillRect(cancelBounds, buttonColor, ColorSpaceDeviceRGB);
 
     // Draw the 'x'
diff --git a/Source/WebCore/rendering/RenderWidget.cpp b/Source/WebCore/rendering/RenderWidget.cpp
index 22283a0..d4b8ba6 100644
--- a/Source/WebCore/rendering/RenderWidget.cpp
+++ b/Source/WebCore/rendering/RenderWidget.cpp
@@ -275,11 +275,7 @@ void RenderWidget::paint(PaintInfo& paintInfo, int tx, int ty)
 
         // Push a clip if we have a border radius, since we want to round the foreground content that gets painted.
         paintInfo.context->save();
-        
-        IntSize topLeft, topRight, bottomLeft, bottomRight;
-        style()->getBorderRadiiForRect(borderRect, topLeft, topRight, bottomLeft, bottomRight);
-
-        paintInfo.context->addRoundedRectClip(borderRect, topLeft, topRight, bottomLeft, bottomRight);
+        paintInfo.context->addRoundedRectClip(style()->getRoundedBorderFor(borderRect));
     }
 
     if (m_widget) {
diff --git a/Source/WebCore/rendering/style/BorderData.h b/Source/WebCore/rendering/style/BorderData.h
index 03635d9..0e50edb 100644
--- a/Source/WebCore/rendering/style/BorderData.h
+++ b/Source/WebCore/rendering/style/BorderData.h
@@ -26,6 +26,7 @@
 #define BorderData_h
 
 #include "BorderValue.h"
+#include "IntRect.h"
 #include "LengthSize.h"
 #include "NinePieceImage.h"
 
@@ -109,7 +110,7 @@ public:
     const LengthSize& topRight() const { return m_topRight; }
     const LengthSize& bottomLeft() const { return m_bottomLeft; }
     const LengthSize& bottomRight() const { return m_bottomRight; }
-    
+
 private:
     BorderValue m_left;
     BorderValue m_right;
diff --git a/Source/WebCore/rendering/style/RenderStyle.cpp b/Source/WebCore/rendering/style/RenderStyle.cpp
index 4665e52..2836fb9 100644
--- a/Source/WebCore/rendering/style/RenderStyle.cpp
+++ b/Source/WebCore/rendering/style/RenderStyle.cpp
@@ -744,7 +744,19 @@ void RenderStyle::setBoxShadow(ShadowData* shadowData, bool add)
     rareData->m_boxShadow.set(shadowData);
 }
 
-static void constrainCornerRadiiForRect(const IntRect& r, IntSize& topLeft, IntSize& topRight, IntSize& bottomLeft, IntSize& bottomRight)
+static RoundedIntRect::Radii calcRadiiFor(const BorderData& border, int width, int height)
+{
+    return RoundedIntRect::Radii(IntSize(border.topLeft().width().calcValue(width), 
+                                         border.topLeft().height().calcValue(height)),
+                                 IntSize(border.topRight().width().calcValue(width),
+                                         border.topRight().height().calcValue(height)),
+                                 IntSize(border.bottomLeft().width().calcValue(width), 
+                                         border.bottomLeft().height().calcValue(height)),
+                                 IntSize(border.bottomRight().width().calcValue(width), 
+                                         border.bottomRight().height().calcValue(height)));
+}
+
+static float calcConstraintScaleFor(const IntRect& rect, const RoundedIntRect::Radii& radii)
 {
     // Constrain corner radii using CSS3 rules:
     // http://www.w3.org/TR/css3-background/#the-border-radius
@@ -753,75 +765,43 @@ static void constrainCornerRadiiForRect(const IntRect& r, IntSize& topLeft, IntS
     unsigned radiiSum;
 
     // top
-    radiiSum = static_cast<unsigned>(topLeft.width()) + static_cast<unsigned>(topRight.width()); // Casts to avoid integer overflow.
-    if (radiiSum > static_cast<unsigned>(r.width()))
-        factor = min(static_cast<float>(r.width()) / radiiSum, factor);
+    radiiSum = static_cast<unsigned>(radii.topLeft().width()) + static_cast<unsigned>(radii.topRight().width()); // Casts to avoid integer overflow.
+    if (radiiSum > static_cast<unsigned>(rect.width()))
+        factor = std::min(static_cast<float>(rect.width()) / radiiSum, factor);
 
     // bottom
-    radiiSum = static_cast<unsigned>(bottomLeft.width()) + static_cast<unsigned>(bottomRight.width());
-    if (radiiSum > static_cast<unsigned>(r.width()))
-        factor = min(static_cast<float>(r.width()) / radiiSum, factor);
+    radiiSum = static_cast<unsigned>(radii.bottomLeft().width()) + static_cast<unsigned>(radii.bottomRight().width());
+    if (radiiSum > static_cast<unsigned>(rect.width()))
+        factor = std::min(static_cast<float>(rect.width()) / radiiSum, factor);
     
     // left
-    radiiSum = static_cast<unsigned>(topLeft.height()) + static_cast<unsigned>(bottomLeft.height());
-    if (radiiSum > static_cast<unsigned>(r.height()))
-        factor = min(static_cast<float>(r.height()) / radiiSum, factor);
+    radiiSum = static_cast<unsigned>(radii.topLeft().height()) + static_cast<unsigned>(radii.bottomLeft().height());
+    if (radiiSum > static_cast<unsigned>(rect.height()))
+        factor = std::min(static_cast<float>(rect.height()) / radiiSum, factor);
     
     // right
-    radiiSum = static_cast<unsigned>(topRight.height()) + static_cast<unsigned>(bottomRight.height());
-    if (radiiSum > static_cast<unsigned>(r.height()))
-        factor = min(static_cast<float>(r.height()) / radiiSum, factor);
+    radiiSum = static_cast<unsigned>(radii.topRight().height()) + static_cast<unsigned>(radii.bottomRight().height());
+    if (radiiSum > static_cast<unsigned>(rect.height()))
+        factor = std::min(static_cast<float>(rect.height()) / radiiSum, factor);
     
-    // Scale all radii by f if necessary.
-    if (factor < 1) {
-        // If either radius on a corner becomes zero, reset both radii on that corner.
-        topLeft.scale(factor);
-        if (!topLeft.width() || !topLeft.height())
-            topLeft = IntSize();
-        topRight.scale(factor);
-        if (!topRight.width() || !topRight.height())
-            topRight = IntSize();
-        bottomLeft.scale(factor);
-        if (!bottomLeft.width() || !bottomLeft.height())
-            bottomLeft = IntSize();
-        bottomRight.scale(factor);
-        if (!bottomRight.width() || !bottomRight.height())
-            bottomRight = IntSize();
-    }
+    ASSERT(factor <= 1);
+    return factor;
 }
 
-void RenderStyle::getBorderRadiiForRect(const IntRect& r, IntSize& topLeft, IntSize& topRight, IntSize& bottomLeft, IntSize& bottomRight) const
+RoundedIntRect RenderStyle::getRoundedBorderFor(const IntRect& rect) const
 {
-    topLeft = IntSize(surround->border.topLeft().width().calcValue(r.width()), surround->border.topLeft().height().calcValue(r.height()));
-    topRight = IntSize(surround->border.topRight().width().calcValue(r.width()), surround->border.topRight().height().calcValue(r.height()));
-    
-    bottomLeft = IntSize(surround->border.bottomLeft().width().calcValue(r.width()), surround->border.bottomLeft().height().calcValue(r.height()));
-    bottomRight = IntSize(surround->border.bottomRight().width().calcValue(r.width()), surround->border.bottomRight().height().calcValue(r.height()));
-
-    constrainCornerRadiiForRect(r, topLeft, topRight, bottomLeft, bottomRight);
+    RoundedIntRect::Radii radii = calcRadiiFor(surround->border, rect.width(), rect.height());
+    radii.scale(calcConstraintScaleFor(rect, radii));
+    return RoundedIntRect(rect, radii);
 }
 
-void RenderStyle::getInnerBorderRadiiForRectWithBorderWidths(const IntRect& innerRect, unsigned short topWidth, unsigned short bottomWidth, unsigned short leftWidth, unsigned short rightWidth, IntSize& innerTopLeft, IntSize& innerTopRight, IntSize& innerBottomLeft, IntSize& innerBottomRight) const
+RoundedIntRect RenderStyle::getRoundedInnerBorderWithBorderWidths(const IntRect& innerRect, unsigned short topWidth, 
+                                                                  unsigned short bottomWidth, unsigned short leftWidth, unsigned short rightWidth) const
 {
-    innerTopLeft = IntSize(surround->border.topLeft().width().calcValue(innerRect.width()), surround->border.topLeft().height().calcValue(innerRect.height()));
-    innerTopRight = IntSize(surround->border.topRight().width().calcValue(innerRect.width()), surround->border.topRight().height().calcValue(innerRect.height()));
-    innerBottomLeft = IntSize(surround->border.bottomLeft().width().calcValue(innerRect.width()), surround->border.bottomLeft().height().calcValue(innerRect.height()));
-    innerBottomRight = IntSize(surround->border.bottomRight().width().calcValue(innerRect.width()), surround->border.bottomRight().height().calcValue(innerRect.height()));
-
-
-    innerTopLeft.setWidth(max(0, innerTopLeft.width() - leftWidth));
-    innerTopLeft.setHeight(max(0, innerTopLeft.height() - topWidth));
-
-    innerTopRight.setWidth(max(0, innerTopRight.width() - rightWidth));
-    innerTopRight.setHeight(max(0, innerTopRight.height() - topWidth));
-
-    innerBottomLeft.setWidth(max(0, innerBottomLeft.width() - leftWidth));
-    innerBottomLeft.setHeight(max(0, innerBottomLeft.height() - bottomWidth));
-
-    innerBottomRight.setWidth(max(0, innerBottomRight.width() - rightWidth));
-    innerBottomRight.setHeight(max(0, innerBottomRight.height() - bottomWidth));
-
-    constrainCornerRadiiForRect(innerRect, innerTopLeft, innerTopRight, innerBottomLeft, innerBottomRight);
+    RoundedIntRect::Radii radii = calcRadiiFor(surround->border, innerRect.width(), innerRect.height());
+    radii.shrink(topWidth, bottomWidth, leftWidth, rightWidth);
+    radii.scale(calcConstraintScaleFor(innerRect, radii));
+    return RoundedIntRect(innerRect, radii);
 }
 
 const CounterDirectiveMap* RenderStyle::counterDirectives() const
diff --git a/Source/WebCore/rendering/style/RenderStyle.h b/Source/WebCore/rendering/style/RenderStyle.h
index 1d7aada..1ef981a 100644
--- a/Source/WebCore/rendering/style/RenderStyle.h
+++ b/Source/WebCore/rendering/style/RenderStyle.h
@@ -43,6 +43,8 @@
 #include "NinePieceImage.h"
 #include "OutlineValue.h"
 #include "RenderStyleConstants.h"
+#include "RoundedIntRect.h"
+#include "ShadowData.h"
 #include "StyleBackgroundData.h"
 #include "StyleBoxData.h"
 #include "StyleFlexibleBoxData.h"
@@ -846,13 +848,10 @@ public:
     {
         setBorderRadius(LengthSize(Length(s.width(), Fixed), Length(s.height(), Fixed)));
     }
-
     
-    void getBorderRadiiForRect(const IntRect&, IntSize& topLeft, IntSize& topRight, IntSize& bottomLeft, IntSize& bottomRight) const;
-    void getInnerBorderRadiiForRectWithBorderWidths(const IntRect&, unsigned short topWidth, 
-                            unsigned short bottomWidth, unsigned short leftWidth, unsigned short rightWidth, 
-                            IntSize& innerTopLeft, IntSize& innerTopRight, IntSize& innerBottomLeft, 
-                            IntSize& innerBottomRight) const;
+    RoundedIntRect getRoundedBorderFor(const IntRect&) const;
+    RoundedIntRect getRoundedInnerBorderWithBorderWidths(const IntRect&, unsigned short topWidth, 
+                                                         unsigned short bottomWidth, unsigned short leftWidth, unsigned short rightWidth) const;
 
     void setBorderLeftWidth(unsigned short v) { SET_VAR(surround, border.m_left.m_width, v) }
     void setBorderLeftStyle(EBorderStyle v) { SET_VAR(surround, border.m_left.m_style, v) }

-- 
WebKit Debian packaging



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