Add hints for potential overlay promotion on android.

cc/ipc/transferable_resource_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/transferable_resource_struct_traits.h"
 #include "gpu/ipc/common/mailbox_holder_struct_traits.h"
 #include "gpu/ipc/common/mailbox_struct_traits.h"
 #include "gpu/ipc/common/sync_token_struct_traits.h"
 #include "ui/gfx/geometry/mojo/geometry_struct_traits.h"
 
 namespace mojo {
 
 // static
 bool StructTraits<cc::mojom::TransferableResourceDataView,
                   cc::TransferableResource>::
     Read(cc::mojom::TransferableResourceDataView data,
          cc::TransferableResource* out) {
   if (!data.ReadSize(&out->size) ||
       !data.ReadMailboxHolder(&out->mailbox_holder))
     return false;
   out->id = data.id();
   out->format = static_cast<cc::ResourceFormat>(data.format());
   out->filter = data.filter();
   out->read_lock_fences_enabled = data.read_lock_fences_enabled();
   out->is_software = data.is_software();
   out->is_overlay_candidate = data.is_overlay_candidate();
+  out->is_backed_by_surface_texture = data.is_backed_by_surface_texture();
+  out->wants_promotion_hint = data.wants_promotion_hint();
   return true;
 }
 
 }  // namespace mojo