Plumb render view ID to media observer

content/renderer/media/audio_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.
 //
 // Audio rendering unit utilizing audio output stream provided by browser
 // process through IPC.
 //
 // Relationship of classes.
 //
 //  AudioOutputController                AudioDevice
@@ skipping 63 matching lines @@
 #include "content/renderer/media/scoped_loop_observer.h"
 #include "media/audio/audio_parameters.h"
 #include "media/base/audio_renderer_sink.h"
 
 namespace media {
 class AudioParameters;
 }
 
 namespace content {
 class AudioDeviceFactory;
+class RenderView;
 }
 
 class CONTENT_EXPORT AudioDevice
     : NON_EXPORTED_BASE(public media::AudioRendererSink),
       public AudioMessageFilter::Delegate,
       NON_EXPORTED_BASE(public ScopedLoopObserver) {
  public:
   // Methods called on main render thread -------------------------------------
 
   // AudioRendererSink implementation.
@@ skipping 15 matching lines @@
  protected:
   friend class content::AudioDeviceFactory;
 
   // Creates an uninitialized AudioDevice. Clients must call Initialize()
   // before using.  The constructor is protected to ensure that the
   // AudioDeviceFactory is always used for construction in Chrome.
   // Tests should use a test class that inherits from AudioDevice to gain
   // access to the constructor.
   // TODO(tommi): When all dependencies on |content| have been removed
   // from AudioDevice, move this class over to media/audio.
-  explicit AudioDevice(const scoped_refptr<base::MessageLoopProxy>& io_loop);
+  AudioDevice(content::RenderView* render_view,
+              const scoped_refptr<base::MessageLoopProxy>& io_loop);
 
   // Magic required by ref_counted.h to avoid any code deleting the object
   // accidentally while there are references to it.
   friend class base::RefCountedThreadSafe<AudioDevice>;
   virtual ~AudioDevice();
 
  private:
   // Methods called on IO thread ----------------------------------------------
   // The following methods are tasks posted on the IO thread that needs to
   // be executed on that thread. They interact with AudioMessageFilter and
   // sends IPC messages on that thread.
   void CreateStreamOnIOThread(const media::AudioParameters& params);
   void PlayOnIOThread();
   void PauseOnIOThread(bool flush);
   void ShutDownOnIOThread();
   void SetVolumeOnIOThread(double volume);
 
   void Send(IPC::Message* message);
 
   // MessageLoop::DestructionObserver implementation for the IO loop.
   // If the IO loop dies before we do, we shut down the audio thread from here.
   virtual void WillDestroyCurrentMessageLoop() OVERRIDE;
 
+  content::RenderView* render_view_;
+
   media::AudioParameters audio_parameters_;
 
   RenderCallback* callback_;
 
   // Cached audio message filter (lives on the main render thread).
   scoped_refptr<AudioMessageFilter> filter_;
 
   // Our stream ID on the message filter. Only accessed on the IO thread.
   // Must only be modified on the IO thread.
   int32 stream_id_;
@@ skipping 14 matching lines @@
   // guard to control stopping and starting the audio thread.
   base::Lock audio_thread_lock_;
   AudioDeviceThread audio_thread_;
   scoped_ptr<AudioDevice::AudioThreadCallback> audio_callback_;
 
 
   DISALLOW_COPY_AND_ASSIGN(AudioDevice);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_AUDIO_DEVICE_H_