Strip out stream counting from AudioRendererHost.

content/browser/renderer_host/media/audio_output_delegate.h

Index: content/browser/renderer_host/media/audio_output_delegate.h
diff --git a/content/browser/renderer_host/media/audio_output_delegate.h b/content/browser/renderer_host/media/audio_output_delegate.h
index 2744295acb9a810d9bd9cc060947e211fa3d5a0e..24a7245bbfcbce70ac158c63ab08bebc0058a9f1 100644
--- a/content/browser/renderer_host/media/audio_output_delegate.h
+++ b/content/browser/renderer_host/media/audio_output_delegate.h
@@ -42,9 +42,6 @@ class CONTENT_EXPORT AudioOutputDelegate
 
     // All these methods are called on the IO thread.
 
-    // Called when the state changes between playing and not playing.
-    virtual void OnStreamStateChanged(bool playing) = 0;
-
     // Called when construction is finished and the stream is ready for
     // playout.
     virtual void OnStreamCreated(int stream_id,