exo::CompositorFrameSink uses CompositorFrameSinkHolder* instead of mojo interface pointer

components/exo/compositor_frame_sink_holder.h

 // 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.
 
 #ifndef COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_
 #define COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_
 
 #include <list>
 #include <map>
 #include <memory>
@@ skipping 13 matching lines @@
 // the contents of Buffers. It's keeped alive by references from
 // release_callbacks_. It's destroyed when its owning Surface is destroyed and
 // the last outstanding release callback is called.
 class CompositorFrameSinkHolder
     : public base::RefCounted<CompositorFrameSinkHolder>,
       public cc::ExternalBeginFrameSourceClient,
       public cc::mojom::MojoCompositorFrameSinkClient,
       public cc::BeginFrameObserver,
       public SurfaceObserver {
  public:
-  CompositorFrameSinkHolder(
-      Surface* surface,
-      std::unique_ptr<CompositorFrameSink> frame_sink,
-      cc::mojom::MojoCompositorFrameSinkClientRequest request);
+  CompositorFrameSinkHolder(Surface* surface,
+                            const cc::FrameSinkId& frame_sink_id,
+                            cc::SurfaceManager* surface_manager);
 
   bool HasReleaseCallbackForResource(cc::ResourceId id);
   void SetResourceReleaseCallback(cc::ResourceId id,
                                   const cc::ReleaseCallback& callback);
 
   CompositorFrameSink* GetCompositorFrameSink() { return frame_sink_.get(); }
 
   base::WeakPtr<CompositorFrameSinkHolder> GetWeakPtr() {
     return weak_factory_.GetWeakPtr();
   }
@@ skipping 29 matching lines @@
   // A collection of callbacks used to release resources.
   using ResourceReleaseCallbackMap = std::map<int, cc::ReleaseCallback>;
   ResourceReleaseCallbackMap release_callbacks_;
 
   Surface* surface_;
   std::unique_ptr<CompositorFrameSink> frame_sink_;
 
   std::unique_ptr<cc::ExternalBeginFrameSource> begin_frame_source_;
   bool needs_begin_frame_ = false;
   cc::BeginFrameArgs last_begin_frame_args_;
-  mojo::Binding<cc::mojom::MojoCompositorFrameSinkClient> binding_;
 
   base::WeakPtrFactory<CompositorFrameSinkHolder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorFrameSinkHolder);
 };
 
 }  // namespace exo
 
 #endif  // COMPONENTS_EXO_COMPOSITOR_FRAME_SINK_HOLDER_H_