Revert of Decouple Media Service

content/common/gpu/media/media_channel.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 CONTENT_COMMON_GPU_MEDIA_MEDIA_CHANNEL_H_
-#define CONTENT_COMMON_GPU_MEDIA_MEDIA_CHANNEL_H_
-
-#include "content/common/gpu/media/gpu_jpeg_decode_accelerator.h"
-#include "ipc/ipc_listener.h"
-#include "ipc/ipc_sender.h"
-#include "media/video/video_decode_accelerator.h"
-
-namespace content {
-
-class GpuChannel;
-class GpuCommandBufferStub;
-struct CreateVideoEncoderParams;
-
-class MediaChannel : public IPC::Listener, public IPC::Sender {
- public:
-  explicit MediaChannel(GpuChannel* channel);
-  ~MediaChannel() override;
-
-  // IPC::Sender implementation:
-  bool Send(IPC::Message* msg) override;
-
- private:
-  // IPC::Listener implementation:
-  bool OnMessageReceived(const IPC::Message& message) override;
-
-  // Message handlers.
-  void OnCreateJpegDecoder(int32_t route_id, IPC::Message* reply_msg);
-  void OnCreateVideoDecoder(int32_t command_buffer_route_id,
-                            const media::VideoDecodeAccelerator::Config& config,
-                            int32_t route_id,
-                            IPC::Message* reply_message);
-  void OnCreateVideoEncoder(const CreateVideoEncoderParams& params,
-                            IPC::Message* reply_message);
-
-  GpuChannel* const channel_;
-  scoped_ptr<GpuJpegDecodeAccelerator> jpeg_decoder_;
-  DISALLOW_COPY_AND_ASSIGN(MediaChannel);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_MEDIA_MEDIA_CHANNEL_H_