[Pkg-chromium-maint] Bug#607173: build fails with debuild as well

[Faheem Mitha]

Running debuild gets me a lot further, but compilation still fails with 
the error below, which googling like an optimization issue.

third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/h264dsp_mmx.c: In 
function ‘h264_h_loop_filter_luma_mmx2’:
third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.c:736: 
error: can't find a register in class ‘GENERAL_REGS’ while reloading ‘asm’
third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.c:736: 
error: ‘asm’ operand has impossible constraints
third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.c:736: 
error: ‘asm’ operand has impossible constraints
third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.c:736: 
error: ‘asm’ operand has impossible constraints
third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.c:736: 
error: ‘asm’ operand has impossible constraints
third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/h264dsp_mmx.c:634: 
error: ‘asm’ operand has impossible constraints
third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.c:736: 
error: ‘asm’ operand has impossible constraints
third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.c:736: 
error: ‘asm’ operand has impossible constraints
make[1]: *** 
[out/Release/obj.target/ffmpegsumo/third_party/ffmpeg/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.o] 
Error 1
make[1]: Leaving directory 
`/usr/local/src/chromium-browser/chromium-browser-6.0.472.63~r59945/src'
make: *** [debian/stamp-makefile-build] Error 2
dpkg-buildpackage: failure: debian/rules build gave error exit status 2
debuild: fatal error at line 1319:
dpkg-buildpackage -rfakeroot -D -us -uc failed