Strip out stream counting from AudioRendererHost.

content/public/browser/render_process_host.h

Index: content/public/browser/render_process_host.h
diff --git a/content/public/browser/render_process_host.h b/content/public/browser/render_process_host.h
index 67c532163fa2c78f3ddc60d9de880e7dbe955bee..c7b5451d4c9705d1beca8d029d654a1b19841339 100644
--- a/content/public/browser/render_process_host.h
+++ b/content/public/browser/render_process_host.h
@@ -120,8 +120,10 @@ class CONTENT_EXPORT RenderProcessHost : public IPC::Sender,
   virtual void WidgetHidden() = 0;
   virtual int VisibleWidgetCount() const = 0;
 
-  // Called when the audio state changes for this render process host.
-  virtual void AudioStateChanged() = 0;
+  // Called when an audio stream is added or removed and used to determine if
+  // the process should be backgrounded or not.
+  virtual void OnAudioStreamAdded() = 0;
+  virtual void OnAudioStreamRemoved() = 0;
 
   // Indicates whether the current RenderProcessHost is exclusively hosting
   // guest RenderFrames. Not all guest RenderFrames are created equal.  A guest,