Add flag to signal that video frame must be drawn using an overlay.

cc/layers/video_layer_impl.cc

Index: cc/layers/video_layer_impl.cc
diff --git a/cc/layers/video_layer_impl.cc b/cc/layers/video_layer_impl.cc
index b2d98eea20ca5f855980f52679ac64fe356bcdec..dbeff75dcde685a3381a89efeac71b8e7dadf6ed 100644
--- a/cc/layers/video_layer_impl.cc
+++ b/cc/layers/video_layer_impl.cc
@@ -285,6 +285,8 @@ void VideoLayerImpl::AppendQuads(RenderPass* render_pass,
           frame_resources_.size() > 3 ? frame_resources_[3].id : 0, color_space,
           frame_->ColorSpace(), frame_resource_offset_,
           frame_resource_multiplier_, frame_bits_per_channel_);
+      yuv_video_quad->require_overlay = frame_->metadata()->IsTrue(
+          media::VideoFrameMetadata::REQUIRE_OVERLAY);
       ValidateQuadResources(yuv_video_quad);
       break;
     }