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

cc/ipc/quads_struct_traits.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/ipc/quads_struct_traits.h"
 #include "ui/gfx/mojo/transform_struct_traits.h"
 
 namespace mojo {
 
 cc::DrawQuad* AllocateAndConstruct(
@@ skipping 237 matching lines @@
 
   if (!data.ReadColorSpace(&quad->color_space))
     return false;
   quad->resource_offset = data.resource_offset();
   quad->resource_multiplier = data.resource_multiplier();
   quad->bits_per_channel = data.bits_per_channel();
   if (quad->bits_per_channel < cc::YUVVideoDrawQuad::kMinBitsPerChannel ||
       quad->bits_per_channel > cc::YUVVideoDrawQuad::kMaxBitsPerChannel) {
     return false;
   }
+  quad->require_overlay = data.require_overlay();
   return true;
 }
 
 // static
 bool StructTraits<cc::mojom::DrawQuadDataView, cc::DrawQuad>::Read(
     cc::mojom::DrawQuadDataView data,
     cc::DrawQuad* out) {
   if (!data.ReadRect(&out->rect) || !data.ReadOpaqueRect(&out->opaque_rect) ||
       !data.ReadVisibleRect(&out->visible_rect)) {
     return false;
   }
   out->needs_blending = data.needs_blending();
   return data.ReadDrawQuadState(out);
 }
 
 }  // namespace mojo