Introduce RenderView::Observer interface so that RenderView doesn't have to k...

chrome/renderer/render_widget.h

Index: chrome/renderer/render_widget.h
===================================================================
--- chrome/renderer/render_widget.h	(revision 71253)
+++ chrome/renderer/render_widget.h	(working copy)
@@ -257,10 +257,6 @@
   // just handled.
   virtual void DidHandleKeyEvent() {}
 
-  // Called by OnHandleInputEvent() to notify subclasses that a mouse event was
-  // just handled.
-  virtual void DidHandleMouseEvent(const WebKit::WebMouseEvent& event) {}
-
   // Routing ID that allows us to communicate to the parent browser process
   // RenderWidgetHost. When MSG_ROUTING_NONE, no messages may be sent.
   int32 routing_id_;