gpu: Remove Echo and SwapCompletion GL interfacess

content/common/gpu/client/command_buffer_proxy_impl.h

 // Copyright (c) 2012 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 CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_
 #define CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 94 matching lines @@
                                                       int32* id) OVERRIDE;
   virtual void DestroyGpuMemoryBuffer(int32 id) OVERRIDE;
   virtual uint32 InsertSyncPoint() OVERRIDE;
   virtual uint32_t InsertFutureSyncPoint() OVERRIDE;
   virtual void RetireSyncPoint(uint32_t sync_point) OVERRIDE;
   virtual void SignalSyncPoint(uint32 sync_point,
                                const base::Closure& callback) OVERRIDE;
   virtual void SignalQuery(uint32 query,
                            const base::Closure& callback) OVERRIDE;
   virtual void SetSurfaceVisible(bool visible) OVERRIDE;
-  virtual void Echo(const base::Closure& callback) OVERRIDE;
   virtual uint32 CreateStreamTexture(uint32 texture_id) OVERRIDE;
 
   int GetRouteID() const;
   bool ProduceFrontBuffer(const gpu::Mailbox& mailbox);
   void SetChannelErrorCallback(const base::Closure& callback);
 
   typedef base::Callback<void(const gpu::MemoryAllocation&)>
       MemoryAllocationChangedCallback;
   void SetMemoryAllocationChangedCallback(
       const MemoryAllocationChangedCallback& callback);
@@ skipping 26 matching lines @@
       GpuMemoryBufferMap;
 
   // Send an IPC message over the GPU channel. This is private to fully
   // encapsulate the channel; all callers of this function must explicitly
   // verify that the context has not been lost.
   bool Send(IPC::Message* msg);
 
   // Message handlers:
   void OnUpdateState(const gpu::CommandBuffer::State& state);
   void OnDestroyed(gpu::error::ContextLostReason reason);
-  void OnEchoAck();
   void OnConsoleMessage(const GPUCommandBufferConsoleMessage& message);
   void OnSetMemoryAllocation(const gpu::MemoryAllocation& allocation);
   void OnSignalSyncPointAck(uint32 id);
 
   // Try to read an updated copy of the state from shared memory.
   void TryUpdateState();
 
   // The shared memory area used to update state.
   gpu::CommandBufferSharedState* shared_state() const;
 
   // Unowned list of DeletionObservers.
   ObserverList<DeletionObserver> deletion_observers_;
 
   // The last cached state received from the service.
   State last_state_;
 
   // The shared memory area used to update state.
   scoped_ptr<base::SharedMemory> shared_state_shm_;
 
   // |*this| is owned by |*channel_| and so is always outlived by it, so using a
   // raw pointer is ok.
   GpuChannelHost* channel_;
   int route_id_;
   unsigned int flush_count_;
   int32 last_put_offset_;
 
-  // Tasks to be invoked in echo responses.
-  std::queue<base::Closure> echo_tasks_;
-
   base::Closure channel_error_callback_;
 
   MemoryAllocationChangedCallback memory_allocation_changed_callback_;
 
   GpuConsoleMessageCallback console_message_callback_;
 
   // Tasks to be invoked in SignalSyncPoint responses.
   uint32 next_signal_id_;
   SignalTaskMap signal_tasks_;
 
   // Local cache of id to gpu memory buffer mapping.
   GpuMemoryBufferMap gpu_memory_buffers_;
 
   gpu::Capabilities capabilities_;
 
   std::vector<ui::LatencyInfo> latency_info_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandBufferProxyImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_COMMAND_BUFFER_PROXY_IMPL_H_