GraphicsContext3DSkia.cpp currently assumes it is running on desktop GL and uses the GL_BGRA format, which is not part of OpenGL ES 2.0. This code should swizzle the red and blue channels manually and use the GL_RGBA format.
Created attachment 51874 [details]
Attachment 51874 [details] did not pass style-queue:
Failed to run "WebKitTools/Scripts/check-webkit-style" exit_code: 1
WebCore/platform/graphics/skia/GraphicsContext3DSkia.cpp:31: Found other header before a header this file implements. Should be: config.h, primary header, blank line, and then alphabetically sorted. [build/include_order] 
Total errors found: 1 in 2 files
If any of these errors are false positives, please file a bug against check-webkit-style.
Comment on attachment 51874 [details]
> Index: WebCore/platform/graphics/skia/GraphicsContext3DSkia.cpp
> + // FIXME: add GL_BGRA extension support
> + for (int i = 0; i < size; i += 4)
> + std::swap(outputVector[i], outputVector[i + 2]);
> + *format = RGBA;
> return true;
^^^ it would be nice to add a comment above the loop explaining
that you are converting from BGRA to RGBA.
r=me with such a comment
Created attachment 51928 [details]
Revised patch addressing review feedback and style issue.
Comment on attachment 51928 [details]
Clearing flags on attachment: 51928
Committed r56735: <http://trac.webkit.org/changeset/56735>
All reviewed patches have been landed. Closing bug.