Revert 233787 "Eliminate Shell::RootWindowList in favor of aura:..."

trunk/src/ash/desktop_background/desktop_background_controller.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_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_H_
 #define ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_H_
 
 #include "ash/ash_export.h"
 #include "ash/display/display_controller.h"
 #include "base/basictypes.h"
@@ skipping 142 matching lines @@
   // Creates view for all root windows, or notifies them to repaint if they
   // already exist.
   void SetDesktopBackgroundImageMode();
 
   // Creates a new background widget and sets the background mode to image mode.
   // Called after a default wallpaper has been loaded successfully.
   void OnDefaultWallpaperLoadCompleted(scoped_refptr<WallpaperLoader> loader);
 
   // Creates and adds component for current mode (either Widget or Layer) to
   // |root_window|.
-  void InstallDesktopController(aura::Window* root_window);
+  void InstallDesktopController(aura::RootWindow* root_window);
 
   // Creates and adds component for current mode (either Widget or Layer) to
   // all root windows.
   void InstallDesktopControllerForAllWindows();
 
   // Moves all desktop components from one container to other across all root
   // windows. Returns true if a desktop moved.
   bool ReparentBackgroundWidgets(int src_container, int dst_container);
 
   // Returns id for background container for unlocked and locked states.
@@ skipping 45 matching lines @@
   base::OneShotTimer<DesktopBackgroundController> timer_;
 
   int wallpaper_reload_delay_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopBackgroundController);
 };
 
 }  // namespace ash
 
 #endif  // ASH_DESKTOP_BACKGROUND_DESKTOP_BACKGROUND_CONTROLLER_H_