Decouple Media Service

content/common/gpu/media/media_service.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_SERVICE_H_
+#define CONTENT_COMMON_GPU_MEDIA_MEDIA_SERVICE_H_
+
+#include <stdint.h>
+
+#include "base/containers/scoped_ptr_hash_map.h"
+#include "base/macros.h"
+#include "ipc/ipc_listener.h"
+#include "ipc/ipc_sender.h"
+#include "media/video/video_decode_accelerator.h"
+
+namespace content {
+
+class GpuChannel;
+class GpuChannelManager;
+class MediaChannel;
+
+class MediaService {
+ public:
+  MediaService(GpuChannelManager* channel_manager);
+  ~MediaService();
+
+  void AddChannel(int32_t client_id);
+  void RemoveChannel(int32_t client_id);
+  void DestroyAllChannels();
+
+ private:
+  GpuChannelManager* const channel_manager_;
+  base::ScopedPtrHashMap<int32_t, scoped_ptr<MediaChannel>> media_channels_;
+  DISALLOW_COPY_AND_ASSIGN(MediaService);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_MEDIA_MEDIA_SERVICE_H_