media: split GpuMemoryBufferVideoFramePool into GpuMemoryBufferVideoFrameCopier/Pool

media/renderers/mock_gpu_memory_buffer_video_frame_copier.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 MEDIA_RENDERERS_MOCK_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_
 #define MEDIA_RENDERERS_MOCK_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_
 
 #include "base/callback.h"
-#include "media/video/gpu_memory_buffer_video_frame_pool.h"
+#include "media/video/gpu_memory_buffer_video_frame_copier.h"
 
 namespace media {
 
-class MockGpuMemoryBufferVideoFramePool : public GpuMemoryBufferVideoFramePool {
+class MockGpuMemoryBufferVideoFrameCopier
+    : public GpuMemoryBufferVideoFrameCopier {
  public:
-  MockGpuMemoryBufferVideoFramePool(std::vector<base::Closure>* frame_ready_cbs)
+  MockGpuMemoryBufferVideoFrameCopier(
+      std::vector<base::Closure>* frame_ready_cbs)
       : frame_ready_cbs_(frame_ready_cbs) {}
   void MaybeCreateHardwareFrame(const scoped_refptr<VideoFrame>& video_frame,
                                 const FrameReadyCB& frame_ready_cb) override;
 
  private:
   std::vector<base::Closure>* frame_ready_cbs_;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_RENDERERS_MOCK_GPU_MEMORY_BUFFER_VIDEO_FRAME_POOL_H_