(NotForReview) Enable YUV video overlay on Skylake ChromeOS.

media/gpu/vaapi_video_decode_accelerator.cc

Index: media/gpu/vaapi_video_decode_accelerator.cc
diff --git a/media/gpu/vaapi_video_decode_accelerator.cc b/media/gpu/vaapi_video_decode_accelerator.cc
index 9c6897fa15abd9ac8c453bfb94953f9328bed059..c1b9fc93d6c59d7e0970f999d1ecf772d1855fd7 100644
--- a/media/gpu/vaapi_video_decode_accelerator.cc
+++ b/media/gpu/vaapi_video_decode_accelerator.cc
@@ -41,7 +41,8 @@ enum VAVDADecoderFailure {
 
 // Buffer format to use for output buffers backing PictureBuffers. This is the
 // format decoded frames in VASurfaces are converted into.
-const gfx::BufferFormat kAllocatePictureFormat = gfx::BufferFormat::BGRA_8888;
+const gfx::BufferFormat kAllocatePictureFormat = gfx::BufferFormat::YUYV_422;
+
 const gfx::BufferFormat kImportPictureFormat = gfx::BufferFormat::YVU_420;
 }
 
@@ -689,10 +690,10 @@ static VideoPixelFormat BufferFormatToVideoPixelFormat(
   switch (format) {
     case gfx::BufferFormat::BGRA_8888:
       return PIXEL_FORMAT_ARGB;
-
     case gfx::BufferFormat::YVU_420:
       return PIXEL_FORMAT_YV12;
-
+    case gfx::BufferFormat::YUYV_422:
+      return PIXEL_FORMAT_YUY2;
     default:
       LOG(FATAL) << "Add more cases as needed";
       return PIXEL_FORMAT_UNKNOWN;