Remove unused render_view_ field from GeolocationDispatcher class.

chrome/renderer/geolocation_dispatcher.h

 // Copyright (c) 2010 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_RENDERER_GEOLOCATION_DISPATCHER_H_
 #define CHROME_RENDERER_GEOLOCATION_DISPATCHER_H_
 #pragma once
 
 #include "base/scoped_ptr.h"
 #include "chrome/renderer/render_view_observer.h"
@@ skipping 34 matching lines @@
       const WebKit::WebGeolocationPermissionRequest& permissionRequest);
   virtual void cancelPermissionRequest(
       const WebKit::WebGeolocationPermissionRequest& permissionRequest);
 
   // Permission for using geolocation has been set.
   void OnGeolocationPermissionSet(int bridge_id, bool is_allowed);
 
   // We have an updated geolocation position or error code.
   void OnGeolocationPositionUpdated(const Geoposition& geoposition);
 
-  // GeolocationDispatcher is owned by RenderView. Back pointer for IPC.
-  RenderView* render_view_;
-
   // The controller_ is valid for the lifetime of the underlying
   // WebCore::GeolocationController. geolocationDestroyed() is
   // invoked when the underlying object is destroyed.
   scoped_ptr< WebKit::WebGeolocationController> controller_;
 
   scoped_ptr<WebKit::WebGeolocationPermissionRequestManager>
       pending_permissions_;
   bool enable_high_accuracy_;
   bool updating_;
 };
 
 #endif  // CHROME_RENDERER_GEOLOCATION_DISPATCHER_H_