Restore to user selected wallpaper after browser crash

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_
 #pragma once
 
 #include <utility>
 #include <vector>
@@ skipping 33 matching lines @@
 class AcceleratorController;
 class DesktopBackgroundController;
 class Launcher;
 class NestedDispatcherController;
 class PowerButtonController;
 class ScreenAsh;
 class ShellDelegate;
 class ShellObserver;
 class SystemTrayDelegate;
 class SystemTray;
+class UserWallpaperDelegate;
 class VideoDetector;
 class WindowCycleController;
 
 namespace internal {
 class ActivationController;
 class AcceleratorFilter;
 class AppList;
 class DragDropController;
 class FocusCycler;
 class InputMethodEventFilter;
@@ skipping 119 matching lines @@
   }
   WindowCycleController* window_cycle_controller() {
     return window_cycle_controller_.get();
   }
   internal::FocusCycler* focus_cycler() {
     return focus_cycler_.get();
   }
 
   ShellDelegate* delegate() { return delegate_.get(); }
   SystemTrayDelegate* tray_delegate() { return tray_delegate_.get(); }
+  UserWallpaperDelegate* user_wallpaper_delegate() {
+    return user_wallpaper_delegate_.get();
+  }
 
   Launcher* launcher() { return launcher_.get(); }
 
   const ScreenAsh* screen() { return screen_; }
 
   internal::ShelfLayoutManager* shelf() const { return shelf_; }
 
   SystemTray* tray() const { return tray_.get(); }
 
   // Returns the size of the grid.
@@ skipping 46 matching lines @@
   std::vector<WindowAndBoundsPair> to_restore_;
 
 #if !defined(OS_MACOSX)
   scoped_ptr<NestedDispatcherController> nested_dispatcher_controller_;
 
   scoped_ptr<AcceleratorController> accelerator_controller_;
 #endif  // !defined(OS_MACOSX)
 
   scoped_ptr<ShellDelegate> delegate_;
   scoped_ptr<SystemTrayDelegate> tray_delegate_;
+  scoped_ptr<UserWallpaperDelegate> user_wallpaper_delegate_;
 
   scoped_ptr<Launcher> launcher_;
 
   scoped_ptr<internal::AppList> app_list_;
 
   scoped_ptr<internal::StackingController> stacking_controller_;
   scoped_ptr<internal::ActivationController> activation_controller_;
   scoped_ptr<internal::WindowModalityController> window_modality_controller_;
   scoped_ptr<internal::DragDropController> drag_drop_controller_;
   scoped_ptr<internal::WorkspaceController> workspace_controller_;
@@ skipping 35 matching lines @@
   // System tray with clock, Wi-Fi signal, etc. (a replacement in progress for
   // |status_widget_|).
   scoped_ptr<SystemTray> tray_;
 
   DISALLOW_COPY_AND_ASSIGN(Shell);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_H_