Refactor the guts of ResourceDispatcherHostImpl into a new class named

content/public/browser/browser_message_filter.h

Index: content/public/browser/browser_message_filter.h
===================================================================
--- content/public/browser/browser_message_filter.h	(revision 141889)
+++ content/public/browser/browser_message_filter.h	(working copy)
@@ -71,13 +71,13 @@
   static bool CheckCanDispatchOnUI(const IPC::Message& message,
                                    IPC::Message::Sender* sender);
 
- protected:
-  virtual ~BrowserMessageFilter();
-
   // Call this if a message couldn't be deserialized.  This kills the renderer.
   // Can be called on any thread.
   virtual void BadMessageReceived();
 
+ protected:
+  virtual ~BrowserMessageFilter();
+
  private:
   // Dispatches a message to the derived class.
   bool DispatchMessage(const IPC::Message& message);