Revert of [scheduler] Teach scheduler about audio state

third_party/WebKit/public/web/WebView.h

Index: third_party/WebKit/public/web/WebView.h
diff --git a/third_party/WebKit/public/web/WebView.h b/third_party/WebKit/public/web/WebView.h
index 980ffc793c5f2ff3be5ce9dc1fd5dcf59b9cd3d5..ae1bcf9ab0bae829fc46fa50ea11bdc558154e18 100644
--- a/third_party/WebKit/public/web/WebView.h
+++ b/third_party/WebKit/public/web/WebView.h
@@ -358,9 +358,6 @@ class WebView : protected WebWidget {
   virtual void performPluginAction(const WebPluginAction&,
                                    const WebPoint& location) = 0;
 
-  // Notifies WebView when audio is started or stopped.
-  virtual void audioStateChanged(bool isAudioPlaying) = 0;
-
   // Data exchange -------------------------------------------------------
 
   // Do a hit test at given point and return the HitTestResult.