Make GetRootWindow() return a Window instead of a RootWindow.

chrome/browser/ui/ash/chrome_shell_delegate.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 CHROME_BROWSER_UI_ASH_CHROME_SHELL_DELEGATE_H_
 #define CHROME_BROWSER_UI_ASH_CHROME_SHELL_DELEGATE_H_
 
 #include <string>
 
 #include "ash/launcher/launcher_types.h"
@@ skipping 49 matching lines @@
   virtual ash::UserWallpaperDelegate* CreateUserWallpaperDelegate() OVERRIDE;
   virtual ash::CapsLockDelegate* CreateCapsLockDelegate() OVERRIDE;
   virtual ash::SessionStateDelegate* CreateSessionStateDelegate() OVERRIDE;
   virtual ash::AccessibilityDelegate* CreateAccessibilityDelegate() OVERRIDE;
   virtual aura::client::UserActionClient* CreateUserActionClient() OVERRIDE;
   virtual void OpenFeedbackPage() OVERRIDE;
   virtual void RecordUserMetricsAction(ash::UserMetricsAction action) OVERRIDE;
   virtual void HandleMediaNextTrack() OVERRIDE;
   virtual void HandleMediaPlayPause() OVERRIDE;
   virtual void HandleMediaPrevTrack() OVERRIDE;
-  virtual ui::MenuModel* CreateContextMenu(aura::RootWindow* root) OVERRIDE;
+  virtual ui::MenuModel* CreateContextMenu(aura::Window* root) OVERRIDE;
   virtual ash::RootWindowHostFactory* CreateRootWindowHostFactory() OVERRIDE;
   virtual string16 GetProductName() const OVERRIDE;
 
   // content::NotificationObserver override:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
  private:
   class TabRestoreHelper;
@@ skipping 14 matching lines @@
   content::NotificationRegistrar registrar_;
 
   ChromeLauncherController* launcher_delegate_;
 
   scoped_ptr<TabRestoreHelper> tab_restore_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeShellDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_CHROME_SHELL_DELEGATE_H_