gpu: Remove Echo and SwapCompletion GL interfacess

content/common/gpu/gpu_command_buffer_stub.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_GPU_COMMAND_BUFFER_STUB_H_
 #define CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_
 
 #include <deque>
 #include <string>
 #include <vector>
@@ skipping 148 matching lines @@
   void OnProduceFrontBuffer(const gpu::Mailbox& mailbox);
   void OnGetState(IPC::Message* reply_message);
   void OnWaitForTokenInRange(int32 start,
                              int32 end,
                              IPC::Message* reply_message);
   void OnWaitForGetOffsetInRange(int32 start,
                                  int32 end,
                                  IPC::Message* reply_message);
   void OnAsyncFlush(int32 put_offset, uint32 flush_count,
                     const std::vector<ui::LatencyInfo>& latency_info);
-  void OnEcho(const IPC::Message& message);
   void OnRescheduled();
   void OnRegisterTransferBuffer(int32 id,
                                 base::SharedMemoryHandle transfer_buffer,
                                 uint32 size);
   void OnDestroyTransferBuffer(int32 id);
   void OnGetTransferBuffer(int32 id, IPC::Message* reply_message);
 
   void OnCreateVideoDecoder(media::VideoCodecProfile profile,
                             int32 route_id,
                             IPC::Message* reply_message);
@@ skipping 97 matching lines @@
   size_t total_gpu_memory_;
   scoped_ptr<WaitForCommandState> wait_for_token_;
   scoped_ptr<WaitForCommandState> wait_for_get_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuCommandBufferStub);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_