Plumb render view ID to media observer

content/browser/renderer_host/media/audio_renderer_host.h

Index: content/browser/renderer_host/media/audio_renderer_host.h
diff --git a/content/browser/renderer_host/media/audio_renderer_host.h b/content/browser/renderer_host/media/audio_renderer_host.h
index f9a650feb792790f51c4ad855481f408a5a9cd9f..118e45f5e62db35b5d30c0ec8cae277b99f9042e 100644
--- a/content/browser/renderer_host/media/audio_renderer_host.h
+++ b/content/browser/renderer_host/media/audio_renderer_host.h
@@ -90,7 +90,8 @@ class CONTENT_EXPORT AudioRendererHost
   typedef std::map<int, AudioEntry*> AudioEntryMap;
 
   // Called from UI thread from the owner of this object.
-  AudioRendererHost(media::AudioManager* audio_manager,
+  AudioRendererHost(int render_process_id,
+                    media::AudioManager* audio_manager,
                     content::MediaObserver* media_observer);
 
   // content::BrowserMessageFilter implementation.
@@ -122,7 +123,9 @@ class CONTENT_EXPORT AudioRendererHost
   // Creates an audio output stream with the specified format. If this call is
   // successful this object would keep an internal entry of the stream for the
   // required properties.
-  void OnCreateStream(int stream_id, const media::AudioParameters& params);
+  void OnCreateStream(int render_view_id,
+                      int stream_id,
+                      const media::AudioParameters& params);
 
   // Play the audio stream referenced by |stream_id|.
   void OnPlayStream(int stream_id);
@@ -176,6 +179,8 @@ class CONTENT_EXPORT AudioRendererHost
   // event is received.
   AudioEntry* LookupByController(media::AudioOutputController* controller);
 
+  int render_process_id_;
+
   // A map of stream IDs to audio sources.
   AudioEntryMap audio_entries_;