Cleanup: Remove unneeded forward declarations from chrome/browser/chromeos.

chrome/browser/chromeos/login/base_login_display_host.h

 // Copyright (c) 2011 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_CHROMEOS_LOGIN_BASE_LOGIN_DISPLAY_HOST_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_BASE_LOGIN_DISPLAY_HOST_H_
 #pragma once
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/login/login_display.h"
 #include "chrome/browser/chromeos/login/login_display_host.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/gfx/rect.h"
 
-namespace views {
-class Widget;
-}
-
 namespace chromeos {
 
 class ExistingUserController;
 class WizardController;
 
 // An abstract base class that defines OOBE/login screen host.
 // It encapsulates controllers, background integration and flow.
 class BaseLoginDisplayHost : public LoginDisplayHost,
                              public content::NotificationObserver {
  public:
@@ skipping 36 matching lines @@
 
   // OOBE and some screens (camera, recovery) controller.
   scoped_ptr<WizardController> wizard_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(BaseLoginDisplayHost);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_BASE_LOGIN_DISPLAY_HOST_H_