Move frame_sink_id management to framesink_manager.cc/h from

services/ui/surfaces/display_compositor.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 SERVICES_UI_SURFACES_DISPLAY_COMPOSITOR_H_
 #define SERVICES_UI_SURFACES_DISPLAY_COMPOSITOR_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <unordered_map>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "cc/ipc/display_compositor.mojom.h"
 #include "cc/surfaces/frame_sink_id.h"
+#include "cc/surfaces/framesink_manager.h"
 #include "cc/surfaces/local_surface_id.h"
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_manager.h"
 #include "cc/surfaces/surface_observer.h"
 #include "components/display_compositor/gpu_compositor_frame_sink_delegate.h"
 #include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
 #include "gpu/ipc/common/surface_handle.h"
 #include "gpu/ipc/in_process_command_buffer.h"
 #include "ipc/ipc_channel_handle.h"
 #include "mojo/public/cpp/bindings/binding.h"
@@ skipping 73 matching lines @@
 
   // cc::SurfaceObserver implementation.
   void OnSurfaceCreated(const cc::SurfaceInfo& surface_info) override;
   void OnSurfaceDamaged(const cc::SurfaceId& surface_id,
                         bool* changed) override;
 
   // SurfaceManager should be the first object constructed and the last object
   // destroyed in order to ensure that all other objects that depend on it have
   // access to a valid pointer for the entirety of their liftimes.
   cc::SurfaceManager manager_;
+  cc::FrameSinkManager framesink_manager_;
 
   scoped_refptr<gpu::InProcessCommandBuffer::Service> gpu_service_;
   std::unique_ptr<gpu::GpuMemoryBufferManager> gpu_memory_buffer_manager_;
   gpu::ImageFactory* image_factory_;
 
   std::unordered_map<
       cc::FrameSinkId,
       std::unique_ptr<display_compositor::GpuCompositorFrameSink>,
       cc::FrameSinkIdHash>
       compositor_frame_sinks_;
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   base::ThreadChecker thread_checker_;
 
   cc::mojom::DisplayCompositorClientPtr client_;
   mojo::Binding<cc::mojom::DisplayCompositor> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayCompositor);
 };
 
 }  // namespace ui
 
 #endif  //  SERVICES_UI_SURFACES_DISPLAY_COMPOSITOR_H_