[ash] Cleanup of ScopedOverviewAnimationSettings

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 119 matching lines @@
 class OverlayEventFilter;
 class PaletteDelegate;
 class PartialMagnificationController;
 class PowerButtonController;
 class PowerEventObserver;
 class ProjectingObserver;
 class ResizeShadowController;
 class ResolutionNotificationController;
 class RootWindowController;
 class ShellPort;
-class ScopedOverviewAnimationSettingsFactoryAura;
 class ScreenLayoutObserver;
 class ScreenOrientationController;
 class ScreenshotController;
 class ScreenPinningController;
 class ScreenPositionController;
 class SessionController;
 class SessionStateDelegate;
 class ShelfController;
 class ShelfModel;
 class ShelfWindowWatcher;
@@ skipping 519 matching lines @@
   static Shell* instance_;
 
   // Only valid in mash, for classic ash this is null.
   static aura::WindowTreeClient* window_tree_client_;
   static aura::WindowManagerClient* window_manager_client_;
 
   // If set before the Shell is initialized, the mouse cursor will be hidden
   // when the screen is initially created.
   static bool initially_hide_cursor_;
 
-  std::unique_ptr<ScopedOverviewAnimationSettingsFactoryAura>
-      scoped_overview_animation_settings_factory_;
   std::unique_ptr<ShellPort> shell_port_;
 
   // The CompoundEventFilter owned by aura::Env object.
   std::unique_ptr<::wm::CompoundEventFilter> env_filter_;
 
   std::unique_ptr<UserMetricsRecorder> user_metrics_recorder_;
   std::unique_ptr<SessionStateDelegate> session_state_delegate_;
   std::unique_ptr<WindowPositioner> window_positioner_;
 
   std::unique_ptr<AcceleratorController> accelerator_controller_;
@@ skipping 145 matching lines @@
   base::ObserverList<ShellObserver> shell_observers_;
 
   scoped_refptr<base::SequencedWorkerPool> blocking_pool_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_