Fixing burning chromium mac tree.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@83791 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/WebCore/WebCore.gypi b/Source/WebCore/WebCore.gypi
index 785d93d..1873209 100644
--- a/Source/WebCore/WebCore.gypi
+++ b/Source/WebCore/WebCore.gypi
@@ -3951,6 +3951,7 @@
             'platform/graphics/cg/GraphicsContextCG.h',
             'platform/graphics/cg/GraphicsContextPlatformPrivateCG.h',
             'platform/graphics/cg/ImageBufferCG.cpp',
+            'platform/graphics/cg/ImageBufferDataCG.cpp',
             'platform/graphics/cg/ImageCG.cpp',
             'platform/graphics/cg/ImageSourceCG.cpp',
             'platform/graphics/cg/ImageSourceCG.h',