Removes some dead code

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>
 
 #include "ash/ash_export.h"
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/public/cpp/shelf_types.h"
 #include "ash/wm/cursor_manager_chromeos.h"
 #include "ash/wm/system_modal_container_event_filter_delegate.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "ui/aura/window.h"
 #include "ui/display/screen.h"
 #include "ui/events/event_target.h"
-#include "ui/gfx/geometry/insets.h"
-#include "ui/gfx/geometry/size.h"
 #include "ui/wm/core/cursor_manager.h"
 
 namespace aura {
 class RootWindow;
 class Window;
 namespace client {
 class ActivationClient;
 class FocusClient;
 }
 }
 
 namespace chromeos {
 class AudioA11yController;
 }
 
 namespace display {
 class DisplayChangeObserver;
 class DisplayManager;
 }
 
 namespace gfx {
-class Rect;
+class Insets;
 }
 
 namespace ui {
 class DisplayConfigurator;
 class UserActivityDetector;
 class UserActivityPowerManagerNotifier;
 }
 namespace views {
 class NonClientFrameView;
 class Widget;
@@ skipping 333 matching lines @@
   GPUSupport* gpu_support() { return gpu_support_.get(); }
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ExtendedDesktopTest, TestCursor);
   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, MouseEventCursors);
   FRIEND_TEST_ALL_PREFIXES(WindowManagerTest, TransformActivate);
   friend class RootWindowController;
   friend class test::ShellTestApi;
   friend class shell::WindowWatcher;
 
-  typedef std::pair<aura::Window*, gfx::Rect> WindowAndBoundsPair;
-
   // Takes ownership of |delegate|.
   explicit Shell(ShellDelegate* delegate);
   ~Shell() override;
 
   void Init(const ShellInitParams& init_params);
 
   // Initializes virtual keyboard controller.
   void InitKeyboard();
 
   // Initializes the root window so that it can host browser windows.
@@ skipping 14 matching lines @@
   // when the screen is initially created.
   static bool initially_hide_cursor_;
 
   std::unique_ptr<ScopedOverviewAnimationSettingsFactoryAura>
       scoped_overview_animation_settings_factory_;
   std::unique_ptr<WmShellAura> wm_shell_;
 
   // 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<AcceleratorControllerDelegateAura>
       accelerator_controller_delegate_;
   std::unique_ptr<SessionStateDelegate> session_state_delegate_;
   std::unique_ptr<WindowPositioner> window_positioner_;
 
   std::unique_ptr<DragDropController> drag_drop_controller_;
   std::unique_ptr<ResizeShadowController> resize_shadow_controller_;
   std::unique_ptr<::wm::ShadowController> shadow_controller_;
   std::unique_ptr<::wm::VisibilityController> visibility_controller_;
@@ skipping 92 matching lines @@
   std::unique_ptr<GPUSupport> gpu_support_;
 
   std::unique_ptr<ImmersiveHandlerFactoryAsh> immersive_handler_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_