Add distinction between RGB and RGBA native texture video frames and resources

content/renderer/media/video_capture_impl.cc

Index: content/renderer/media/video_capture_impl.cc
diff --git a/content/renderer/media/video_capture_impl.cc b/content/renderer/media/video_capture_impl.cc
index 9b104d28a7a1dd0517843d55e1a18f10a0fd6d13..45b2228776d8832108713227eb20f7916de103f4 100644
--- a/content/renderer/media/video_capture_impl.cc
+++ b/content/renderer/media/video_capture_impl.cc
@@ -281,7 +281,8 @@ void VideoCaptureImpl::OnMailboxBufferReceived(
           &VideoCaptureImpl::OnClientBufferFinished, weak_factory_.GetWeakPtr(),
           buffer_id, scoped_refptr<ClientBuffer>())),
       packed_frame_size, gfx::Rect(packed_frame_size), packed_frame_size,
-      timestamp - first_frame_timestamp_, false);
+      timestamp - first_frame_timestamp_, false /* allows_overlay */,
+      true /* has_alpha */);
   frame->metadata()->MergeInternalValuesFrom(metadata);
 
   for (const auto& client : clients_)