Implement cc::CompositorFrameMetadata StructTraits

components/mus/public/cpp/surfaces/custom_surface_converter.h

 // Copyright 2015 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.
 
 #ifndef COMPONENTS_MUS_PUBLIC_CPP_SURFACES_CUSTOM_SURFACE_CONVERTER_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_SURFACES_CUSTOM_SURFACE_CONVERTER_H_
 
 #include "components/mus/public/interfaces/compositor_frame.mojom.h"
 #include "components/mus/public/interfaces/quads.mojom.h"
 
 namespace cc {
+class CompositorFrameMetadata;
 class RenderPass;
 class SharedQuadState;
 }  // namespace cc
 
 namespace mojo {
 
 // Classes that inherit from this converter can override the default behavior
 // for converting a mojo::SurfaceDrawState to something cc understands.
 class CustomSurfaceConverter {
  public:
   virtual bool ConvertSurfaceDrawQuad(
       const mus::mojom::QuadPtr& input,
-      const mus::mojom::CompositorFrameMetadataPtr& metadata,
+      const cc::CompositorFrameMetadata& metadata,
       cc::SharedQuadState* sqs,
       cc::RenderPass* render_pass) = 0;
 
  protected:
   virtual ~CustomSurfaceConverter() {}
 };
 
 } // namespace mojo
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_SURFACES_CUSTOM_SURFACE_CONVERTER_H_