chrome: Cleanup class/struct forward declarations

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h

 // Copyright 2013 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_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_IMPL_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_IMPL_H_
 
 #include <list>
 #include <memory>
 
@@ skipping 10 matching lines @@
 #include "chrome/browser/ui/ash/chrome_launcher_prefs.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 #include "chrome/browser/ui/ash/launcher/launcher_app_updater.h"
 #include "components/prefs/pref_change_registrar.h"
 #include "ui/aura/window_observer.h"
 
 class AppSyncUIState;
 class BrowserStatusMonitor;
 class Profile;
 class AppWindowLauncherController;
-class TabContents;
 
 namespace ash {
 class ShelfModel;
 namespace launcher {
 class ChromeLauncherPrefsObserver;
 }
 }
 
-namespace aura {
-class Window;
-}
-
 namespace content {
 class BrowserContext;
 }
 
-namespace extensions {
-class Extension;
-}
-
 class ChromeLauncherControllerUserSwitchObserver;
 
 // Implementation of ChromeLauncherController, used for classic Ash.
 // In addition to implementing ChromeLauncherController, this class performs
 // a lot of other responsibilities, such as implementing ash::ShelfDelegate,
 // updating the UI state and the shelf model when apps are uninstalled, etc.
 class ChromeLauncherControllerImpl
     : public ChromeLauncherController,
       public ash::ShelfDelegate,
       public LauncherAppUpdater::Delegate,
@@ skipping 258 matching lines @@
   typedef std::vector<std::string> RunningAppListIds;
   typedef std::map<std::string, RunningAppListIds> RunningAppListIdMap;
   RunningAppListIdMap last_used_running_application_order_;
 
   base::WeakPtrFactory<ChromeLauncherControllerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherControllerImpl);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_IMPL_H_