16 bit capture and GPU&CPU memory buffer support.

cc/resources/video_resource_updater.cc

Index: cc/resources/video_resource_updater.cc
diff --git a/cc/resources/video_resource_updater.cc b/cc/resources/video_resource_updater.cc
index c35d5d4273db362f72fb00b5fed805019470d5b3..0aa5968071e06f5f28867ce1d5fbf088fae87708 100644
--- a/cc/resources/video_resource_updater.cc
+++ b/cc/resources/video_resource_updater.cc
@@ -272,6 +272,9 @@ VideoResourceUpdater::CreateExternalResourcesFromVideoFrame(
     scoped_refptr<media::VideoFrame> video_frame) {
   if (video_frame->format() == media::PIXEL_FORMAT_UNKNOWN)
     return VideoFrameExternalResources();
+  // TODO(astojilj): Support PIXEL_FORMAT_Y16. crbug.com/624436
+  if (video_frame->format() == media::PIXEL_FORMAT_Y16)
+    return VideoFrameExternalResources();
   DCHECK(video_frame->HasTextures() || video_frame->IsMappable());
   if (video_frame->HasTextures())
     return CreateForHardwarePlanes(std::move(video_frame));
@@ -357,9 +360,6 @@ VideoFrameExternalResources VideoResourceUpdater::CreateForSoftwarePlanes(
       break;
   }
 
-  // TODO(dshwang): support PIXEL_FORMAT_Y16. crbug.com/624436
-  DCHECK_NE(bits_per_channel, 16);
-
   // Only YUV software video frames are supported.
   if (!media::IsYuvPlanar(input_frame_format)) {
     NOTREACHED() << media::VideoPixelFormatToString(input_frame_format);