media: Add MojoDecoderBuffer{Reader|Writer}

media/mojo/clients/mojo_video_decoder.h

 // Copyright 2016 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_MOJO_CLIENTS_MOJO_VIDEO_DECODER_H_
 #define MEDIA_MOJO_CLIENTS_MOJO_VIDEO_DECODER_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "media/base/video_decoder.h"
 #include "media/mojo/interfaces/video_decoder.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
-#include "mojo/public/cpp/system/data_pipe.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 
 class GpuVideoAcceleratorFactories;
+class MojoDecoderBufferWriter;
 
 // A VideoDecoder, for use in the renderer process, that proxies to a
 // mojom::VideoDecoder. It is assumed that the other side will be implemented by
 // MojoVideoDecoderService, running in the GPU process, and that the remote
 // decoder will be hardware accelerated.
 class MojoVideoDecoder final : public VideoDecoder,
                                public mojom::VideoDecoderClient {
  public:
   MojoVideoDecoder(scoped_refptr<base::SingleThreadTaskRunner> task_runner,
                    GpuVideoAcceleratorFactories* gpu_factories,
@@ skipping 31 matching lines @@
   // Used to pass the remote decoder from the constructor (on the main thread)
   // to Initialize() (on the media thread).
   mojom::VideoDecoderPtrInfo remote_decoder_info_;
 
   InitCB init_cb_;
   OutputCB output_cb_;
   DecodeCB decode_cb_;
   base::Closure reset_cb_;
 
   mojom::VideoDecoderPtr remote_decoder_;
-  mojo::ScopedDataPipeProducerHandle decoder_buffer_pipe_;
+  std::unique_ptr<MojoDecoderBufferWriter> mojo_decoder_buffer_writer_;
   bool remote_decoder_bound_ = false;
   bool has_connection_error_ = false;
   mojo::Binding<VideoDecoderClient> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_CLIENTS_MOJO_VIDEO_DECODER_H_