Add OVERRIDE to chrome/browser/.

chrome/browser/net/http_server_properties_manager.h

 // Copyright (c) 2011 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_NET_HTTP_SERVER_PROPERTIES_MANAGER_H_
 #define CHROME_BROWSER_NET_HTTP_SERVER_PROPERTIES_MANAGER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 155 matching lines @@
   // testing.
   void UpdatePrefsOnUI(
       base::ListValue* spdy_server_list,
       net::SpdySettingsMap* spdy_settings_map,
       net::AlternateProtocolMap* alternate_protocol_map);
 
  private:
   // Callback for preference changes.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
-                       const content::NotificationDetails& details);
+                       const content::NotificationDetails& details) OVERRIDE;
 
   // ---------
   // UI thread
   // ---------
 
   // Used to get |weak_ptr_| to self on the UI thread.
   scoped_ptr<base::WeakPtrFactory<HttpServerPropertiesManager> >
       ui_weak_ptr_factory_;
 
   base::WeakPtr<HttpServerPropertiesManager> ui_weak_ptr_;
@@ skipping 16 matching lines @@
       io_prefs_update_timer_;
 
   scoped_ptr<net::HttpServerPropertiesImpl> http_server_properties_impl_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpServerPropertiesManager);
 };
 
 }  // namespace chrome_browser_net
 
 #endif  // CHROME_BROWSER_NET_HTTP_SERVER_PROPERTIES_MANAGER_H_