Change MessageService to use ProfileKeyedAPI.

chrome/browser/extensions/test_extension_system.h

 // Copyright (c) 2012 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_EXTENSIONS_TEST_EXTENSION_SYSTEM_H_
 #define CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_SYSTEM_H_
 
 #include "chrome/browser/extensions/extension_system.h"
 
 class CommandLine;
@@ skipping 45 matching lines @@
   virtual UserScriptMaster* user_script_master() OVERRIDE;
   virtual ExtensionProcessManager* process_manager() OVERRIDE;
   virtual AlarmManager* alarm_manager() OVERRIDE;
   virtual LocationManager* location_manager() OVERRIDE;
   virtual StateStore* state_store() OVERRIDE;
   virtual StateStore* rules_store() OVERRIDE;
   virtual ExtensionPrefs* extension_prefs() OVERRIDE;
   virtual ShellWindowGeometryCache* shell_window_geometry_cache() OVERRIDE;
   virtual ExtensionInfoMap* info_map() OVERRIDE;
   virtual LazyBackgroundTaskQueue* lazy_background_task_queue() OVERRIDE;
-  virtual MessageService* message_service() OVERRIDE;
   virtual EventRouter* event_router() OVERRIDE;
   virtual RulesRegistryService* rules_registry_service() OVERRIDE;
   virtual ApiResourceManager<SerialConnection>* serial_connection_manager()
       OVERRIDE;
   virtual ApiResourceManager<Socket>* socket_manager() OVERRIDE;
   virtual ApiResourceManager<UsbDeviceResource>* usb_device_resource_manager()
       OVERRIDE;
   virtual ExtensionWarningService* warning_service() OVERRIDE;
   virtual Blacklist* blacklist() OVERRIDE;
 
@@ skipping 17 matching lines @@
   scoped_ptr<ExtensionProcessManager> extension_process_manager_;
   scoped_ptr<AlarmManager> alarm_manager_;
   scoped_refptr<LocationManager> location_manager_;
   scoped_refptr<ExtensionInfoMap> info_map_;
   scoped_ptr<ApiResourceManager<Socket> > socket_manager_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_SYSTEM_H_