Merge AssociateStreamWithProducer message into CreateStream message for both audio output and input.

content/renderer/media/renderer_audio_output_device.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_RENDERER_MEDIA_RENDERER_AUDIO_OUTPUT_DEVICE_H_
-#define CONTENT_RENDERER_MEDIA_RENDERER_AUDIO_OUTPUT_DEVICE_H_
-
-#include "base/memory/ref_counted.h"
-#include "media/audio/audio_output_device.h"
-
-namespace base {
-class MessageLoopProxy;
-}
-
-namespace content {
-
-class AudioDeviceFactory;
-class AudioMessageFilter;
-
-// Subclass of media::AudioOutputDevice to support additional concepts within
-// the content component.  Use AudioDeviceFactory to instantiate this class.
-class RendererAudioOutputDevice
-    : NON_EXPORTED_BASE(public media::AudioOutputDevice) {
- public:
-  // Set the source of the rendered audio data to the RenderView specified by
-  // |render_view_id|.  Callers should keep in mind that the RenderView which
-  // caused the instantiation of RendererAudioOutputDevice might not necessarily
-  // be same as the RenderView which actually renders the audio data.
-  void SetSourceRenderView(int render_view_id);
-
-  virtual void Start() OVERRIDE;
-  virtual void Stop() OVERRIDE;
-
- protected:
-  friend class AudioDeviceFactory;
-
-  // Creates an uninitialized RendererAudioOutputDevice.  Clients must call
-  // Initialize() before using.
-  RendererAudioOutputDevice(
-      AudioMessageFilter* message_filter,
-      const scoped_refptr<base::MessageLoopProxy>& io_loop);
-
- private:
-  virtual ~RendererAudioOutputDevice();
-
-  void OnStart();
-  void OnStop();
-  void OnSourceChange(int render_view_id);
-
-  int source_render_view_id_;
-  bool is_after_stream_created_;
-
-  DISALLOW_IMPLICIT_CONSTRUCTORS(RendererAudioOutputDevice);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_MEDIA_RENDERER_AUDIO_OUTPUT_DEVICE_H_