Fix even more crashes. To help identify remaining crashes now and in the future, I have made the ...

chrome/browser/chromeos/login/user_controller.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_USER_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_CONTROLLER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 92 matching lines @@
   // Update border window parameters to notify window manager about new numbers.
   // |index| of this user and |total_user_count| of users.
   void UpdateUserCount(int index, int total_user_count);
 
   // Returns the label for the user which should be spoken when accessibility is
   // enabled.
   std::string GetAccessibleUserLabel();
 
   // views::WidgetDelegate implementation:
   virtual void OnWidgetActivated(bool active) OVERRIDE;
+  virtual views::Widget* GetWidget() OVERRIDE;
+  virtual const views::Widget* GetWidget() const OVERRIDE;
 
   // NewUserView::Delegate implementation:
   virtual void OnLogin(const std::string& username,
                        const std::string& password) OVERRIDE;
   virtual void OnLoginAsGuest() OVERRIDE;
   virtual void OnCreateAccount() OVERRIDE;
   virtual void OnStartEnterpriseEnrollment() OVERRIDE;
   virtual void ClearErrors() OVERRIDE;
   virtual void NavigateAway() OVERRIDE;
 
@@ skipping 94 matching lines @@
 
   // Whether name tooltip is enabled.
   bool name_tooltip_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(UserController);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_CONTROLLER_H_