Move small c/b/extensions classes into extensions namespace no.2

chrome/browser/ui/views/ash/launcher/chrome_launcher_controller.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_UI_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 33 matching lines @@
 class Profile;
 class TabContents;
 
 // ChromeLauncherController manages the launcher items needed for tabbed
 // browsers (BrowserLauncherItemController) and browser shortcuts.
 class ChromeLauncherController
     : public ash::LauncherDelegate,
       public ash::LauncherModelObserver,
       public ash::ShellObserver,
       public content::NotificationObserver,
-      public ShellWindowRegistry::Observer,
+      public extensions::ShellWindowRegistry::Observer,
       public aura::client::ActivationChangeObserver,
       public aura::WindowObserver {
  public:
   // Indicates if a launcher item is incognito or not.
   enum IncognitoState {
     STATE_INCOGNITO,
     STATE_NOT_INCOGNITO,
   };
 
   // Used to update the state of non plaform apps, as tab contents change.
@@ skipping 286 matching lines @@
 
   content::NotificationRegistrar notification_registrar_;
 
   PrefChangeRegistrar pref_change_registrar_;
   aura::client::ActivationClient* activation_client_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherController);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_