[mus+ash] Removes WmWindow from screen_dimmer and video_detector

chrome/browser/chromeos/accessibility/accessibility_manager.cc

 // 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.
 
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 1258 matching lines @@
   // changes, since the shelf layout manager doesn't exist in the login profile.
   if (chromevox_panel_)
     chromevox_panel_->UpdatePanelHeight();
 }
 
 void AccessibilityManager::ActiveUserChanged(
     const user_manager::User* active_user) {
   SetProfile(ProfileManager::GetActiveUserProfile());
 }
 
-void AccessibilityManager::OnFullscreenStateChanged(
-    bool is_fullscreen,
-    ash::WmWindow* root_window) {
+void AccessibilityManager::OnFullscreenStateChanged(bool is_fullscreen,
+                                                    aura::Window* root_window) {
   if (chromevox_panel_)
     chromevox_panel_->UpdateWidgetBounds();
 }
 
 void AccessibilityManager::SetProfileForTest(Profile* profile) {
   SetProfile(profile);
 }
 
 void AccessibilityManager::SetBrailleControllerForTest(
     BrailleController* controller) {
@@ skipping 235 matching lines @@
     content::BrowserContext* context) {
   keyboard_listener_extension_id_ = id;
 
   extensions::ExtensionRegistry* registry =
       extensions::ExtensionRegistry::Get(context);
   if (!extension_registry_observer_.IsObserving(registry) && !id.empty())
     extension_registry_observer_.Add(registry);
 }
 
 }  // namespace chromeos