Move AccessibilityDelegate ownership to ash::WmShell

ash/shell.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 ASH_SHELL_H_
 #define ASH_SHELL_H_
 
 #include <memory>
 #include <utility>
 #include <vector>
@@ skipping 62 matching lines @@
 class AcceleratorFilter;
 class CompoundEventFilter;
 class ShadowController;
 class VisibilityController;
 class WindowModalityController;
 }
 
 namespace ash {
 
 class AcceleratorController;
-class AccessibilityDelegate;
 class AppListController;
 class AshNativeCursorManager;
 class AutoclickController;
 class BluetoothNotificationController;
 class CaptureController;
 class DesktopBackgroundController;
 class DisplayChangeObserver;
 class DisplayColorManager;
 class DisplayConfigurationController;
 class WindowTreeHostManager;
@@ skipping 273 matching lines @@
   ::wm::CursorManager* cursor_manager() { return cursor_manager_.get(); }
 
   UserWallpaperDelegate* user_wallpaper_delegate() {
     return user_wallpaper_delegate_.get();
   }
 
   SessionStateDelegate* session_state_delegate() {
     return session_state_delegate_.get();
   }
 
-  AccessibilityDelegate* accessibility_delegate() {
-    return accessibility_delegate_.get();
-  }
-
   NewWindowDelegate* new_window_delegate() {
     return new_window_delegate_.get();
   }
 
   HighContrastController* high_contrast_controller() {
     return high_contrast_controller_.get();
   }
 
   MagnificationController* magnification_controller() {
     return magnification_controller_.get();
@@ skipping 196 matching lines @@
 
   // The CompoundEventFilter owned by aura::Env object.
   std::unique_ptr<::wm::CompoundEventFilter> env_filter_;
 
   std::vector<WindowAndBoundsPair> to_restore_;
 
   std::unique_ptr<UserMetricsRecorder> user_metrics_recorder_;
   std::unique_ptr<AcceleratorController> accelerator_controller_;
   std::unique_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
   std::unique_ptr<SessionStateDelegate> session_state_delegate_;
-  std::unique_ptr<AccessibilityDelegate> accessibility_delegate_;
   std::unique_ptr<NewWindowDelegate> new_window_delegate_;
   std::unique_ptr<PointerWatcherDelegate> pointer_watcher_delegate_;
   std::unique_ptr<ShelfDelegate> shelf_delegate_;
   std::unique_ptr<ShelfItemDelegateManager> shelf_item_delegate_manager_;
   std::unique_ptr<ShelfWindowWatcher> shelf_window_watcher_;
 
   std::unique_ptr<ShelfModel> shelf_model_;
   std::unique_ptr<WindowPositioner> window_positioner_;
 
   std::unique_ptr<DragDropController> drag_drop_controller_;
@@ skipping 100 matching lines @@
   base::SequencedWorkerPool* blocking_pool_;
 
   bool in_mus_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_