<webview>: Cleanup WebRequest event listeners when embedder destroyed

chrome/browser/guestview/guestview.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_GUESTVIEW_GUESTVIEW_H_
 #define CHROME_BROWSER_GUESTVIEW_GUESTVIEW_H_
 
 #include <queue>
 
 #include "base/values.h"
@@ skipping 67 matching lines @@
 
   // Returns the extension ID of the embedder.
   const std::string& extension_id() const { return extension_id_; }
 
   // Returns the user browser context of the embedder.
   content::BrowserContext* browser_context() const { return browser_context_; }
 
   // Returns the embedder's process ID.
   int embedder_render_process_id() const { return embedder_render_process_id_; }
 
-  // Returns the embedder's routing ID.
-  int embedder_routing_id() const { return embedder_routing_id_; }
-
  protected:
   virtual ~GuestView();
 
   // Dispatches an event |event_name| to the embedder with the |event| fields.
   void DispatchEvent(Event* event);
 
  private:
   void SendQueuedEvents();
 
   content::WebContents* guest_web_contents_;
   content::WebContents* embedder_web_contents_;
   std::string extension_id_;
   int embedder_render_process_id_;
-  int embedder_routing_id_;
   content::BrowserContext* browser_context_;
   // |guest_instance_id_| is a profile-wide unique identifier for a guest
   // WebContents.
   const int guest_instance_id_;
   // |view_instance_id_| is an identifier that's unique within a particular
   // embedder RenderViewHost for a particular <*view> instance.
   int view_instance_id_;
 
   // This is a queue of Events that are destined to be sent to the embedder once
   // the guest is attached to a particular embedder.
   std::queue<Event*> pending_events_;
 
   DISALLOW_COPY_AND_ASSIGN(GuestView);
 };
 
 #endif  // CHROME_BROWSER_GUESTVIEW_GUESTVIEW_H_