Implement aura::Window::CreateCompositorFrameSink()

components/exo/buffer.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_EXO_BUFFER_H_
 #define COMPONENTS_EXO_BUFFER_H_
 
 #include <memory>
 
 #include "base/callback.h"
@@ skipping 106 matching lines @@
   // instead of creating a new texture when possible.
   std::unique_ptr<Texture> texture_;
 
   // The last used contents texture. ProduceTransferableResource() will use this
   // instead of creating a new texture when possible.
   std::unique_ptr<Texture> contents_texture_;
 
   // The client release callback.
   base::Closure release_callback_;
 
-  // CompositorFrameSinkHolder instance that needs to be kept alive to receive
-  // a release callback when the last produced transferable resource is no
-  // longer in use.
-  scoped_refptr<CompositorFrameSinkHolder> compositor_frame_sink_holder_;
-
   // Cancelable release contents callback. This is set when a release callback
   // is pending.
   base::CancelableClosure release_contents_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(Buffer);
 };
 
 }  // namespace exo
 
 #endif  // COMPONENTS_EXO_BUFFER_H_