Add the "virtual" keyword on method overrides that are missing it.

chrome/renderer/geolocation_dispatcher_old.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_OLD_H_
 #define CHROME_RENDERER_GEOLOCATION_DISPATCHER_OLD_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/id_map.h"
@@ skipping 15 matching lines @@
 class GeolocationDispatcherOld : public WebKit::WebGeolocationService {
  public:
   explicit GeolocationDispatcherOld(RenderView* render_view);
   virtual ~GeolocationDispatcherOld();
 
   // Called to possibly handle the incoming IPC message. Returns true if
   // handled. Called in render thread.
   bool OnMessageReceived(const IPC::Message& msg);
 
   // WebKit::WebGeolocationService.
-  void requestPermissionForFrame(int bridge_id, const WebKit::WebURL& url);
-  void cancelPermissionRequestForFrame(
+  virtual void requestPermissionForFrame(int bridge_id,
+                                         const WebKit::WebURL& url);
+  virtual void cancelPermissionRequestForFrame(
       int bridge_id, const WebKit::WebURL& url);
-  void startUpdating(
+  virtual void startUpdating(
       int bridge_id, const WebKit::WebURL& url, bool enableHighAccuracy);
-  void stopUpdating(int bridge_id);
-  void suspend(int bridge_id);
-  void resume(int bridge_id);
-  int attachBridge(WebKit::WebGeolocationServiceBridge* geolocation_service);
-  void detachBridge(int bridge_id);
+  virtual void stopUpdating(int bridge_id);
+  virtual void suspend(int bridge_id);
+  virtual void resume(int bridge_id);
+  virtual int attachBridge(
+      WebKit::WebGeolocationServiceBridge* geolocation_service);
+  virtual void detachBridge(int bridge_id);
 
  private:
   // 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);
 
   RenderView* render_view_;
 
   // The geolocation services attached to this dispatcher.
   IDMap<WebKit::WebGeolocationServiceBridge> bridges_map_;
 
   DISALLOW_COPY_AND_ASSIGN(GeolocationDispatcherOld);
 };
 
 #endif  // CHROME_RENDERER_GEOLOCATION_DISPATCHER_OLD_H_