[mus+ash] Removes WmWindow from screen_dimmer and video_detector

chrome/browser/chromeos/accessibility/accessibility_manager.h

 // Copyright (c) 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_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_
 
 #include <set>
 
 #include "ash/accessibility_types.h"
@@ skipping 217 matching lines @@
 
   // Returns true if a braille display is connected to the system, otherwise
   // false.
   bool IsBrailleDisplayConnected() const;
 
   // user_manager::UserManager::UserSessionStateObserver overrides:
   void ActiveUserChanged(const user_manager::User* active_user) override;
 
   // ShellObserver overrides:
   void OnFullscreenStateChanged(bool is_fullscreen,
-                                ash::WmWindow* root_window) override;
+                                aura::Window* root_window) override;
 
   void SetProfileForTest(Profile* profile);
 
   static void SetBrailleControllerForTest(
       extensions::api::braille_display_private::BrailleController* controller);
 
   // Enables/disables system sounds.
   void EnableSystemSounds(bool system_sounds_enabled);
 
   // Initiates play of shutdown sound and returns it's duration.
@@ skipping 205 matching lines @@
       switch_access_event_handler_;
 
   base::WeakPtrFactory<AccessibilityManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_