SetVolume and GetVolume take one volume instead of separate left and right vo...

chrome/renderer/media/audio_renderer_impl.h

Index: chrome/renderer/media/audio_renderer_impl.h
===================================================================
--- chrome/renderer/media/audio_renderer_impl.h	(revision 30948)
+++ chrome/renderer/media/audio_renderer_impl.h	(working copy)
@@ -120,7 +120,7 @@
                        const base::Time& message_timestamp);
   void OnStateChanged(ViewMsg_AudioStreamState state);
   void OnCreated(base::SharedMemoryHandle handle, size_t length);
-  void OnVolume(double left, double right);
+  void OnVolume(double volume);
 
   // Methods called on pipeline thread ----------------------------------------
   // media::MediaFilter implementation.
@@ -159,7 +159,7 @@
                       size_t packet_size, size_t buffer_capacity);
   void OnPlay();
   void OnPause();
-  void OnSetVolume(double left, double right);
+  void OnSetVolume(double volume);
   void OnNotifyPacketReady();
   void OnDestroy();