Move UserScript and related into extensions namespace

chrome/browser/extensions/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_EXTENSION_SYSTEM_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/profiles/profile_keyed_service.h"
 #include "chrome/common/extensions/extension_constants.h"
 
 class ExtensionDevToolsManager;
 class ExtensionEventRouter;
 class ExtensionInfoMap;
 class ExtensionMessageService;
 class ExtensionNavigationObserver;
 class ExtensionProcessManager;
 class ExtensionService;
 class Profile;
-class UserScriptMaster;
 
 namespace extensions {
 class AlarmManager;
 class Extension;
 class ExtensionPrefs;
 class ExtensionSystemSharedFactory;
 class LazyBackgroundTaskQueue;
 class ManagementPolicy;
 class RulesRegistryService;
 class StateStore;
+class UserScriptMaster;
 
 // The ExtensionSystem manages the creation and destruction of services
 // related to extensions. Most objects are shared between normal
 // and incognito Profiles, except as called out in comments.
 // This interface supports using TestExtensionSystem for TestingProfiles
 // that don't want all of the extensions baggage in their tests.
 class ExtensionSystem : public ProfileKeyedService {
  public:
   ExtensionSystem();
   virtual ~ExtensionSystem();
@@ skipping 162 matching lines @@
   // access to the ResourceContext owned by |io_data_|.
   scoped_ptr<ExtensionProcessManager> extension_process_manager_;
   scoped_ptr<AlarmManager> alarm_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionSystemImpl);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SYSTEM_H_