bitmap5.eraseColor(SK_ColorTRANSPARENT);
bitmap5.eraseArea(SkIRect::MakeLTRB(4, 3, 16, 16), SK_ColorYELLOW);
gfx::ImageSkia img5 = gfx::ImageSkia::CreateFrom1xBitmap(bitmap5);
bitmap5.eraseColor(SK_ColorTRANSPARENT);
bitmap5.eraseArea(SkIRect::MakeLTRB(4, 3, 16, 16), SK_ColorYELLOW);
gfx::ImageSkia img5 = gfx::ImageSkia::CreateFrom1xBitmap(bitmap5);