Add public accounts to UserManager

chrome/browser/chromeos/login/user_manager.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_CHROMEOS_LOGIN_USER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_
 
 #include <string>
 
 #include "base/memory/singleton.h"
@@ skipping 44 matching lines @@
   //     ...
   //     UserManager::Set(old_user_manager_);
   //   }
   //   scoped_ptr<MockUserManager> mock_user_manager_;
   //   UserManager* old_user_manager_;
   static UserManager* Set(UserManager* mock);
 
   // Registers user manager preferences.
   static void RegisterPrefs(PrefService* local_state);
 
+  // Indicates imminent shutdown, allowing the UserManager to remove any
+  // observers it has registered.
+  virtual void Shutdown() = 0;
+
   virtual ~UserManager();
 
   virtual UserImageManager* GetUserImageManager() = 0;
 
   // Returns a list of users who have logged into this device previously. This
   // is sorted by last login date with the most recent user at the beginning.
   virtual const UserList& GetUsers() const = 0;
 
   // Indicates that a user with the given email has just logged in. The
   // persistent list is updated accordingly if the user is not ephemeral.
@@ skipping 105 matching lines @@
 
   virtual void AddObserver(Observer* obs) = 0;
   virtual void RemoveObserver(Observer* obs) = 0;
 
   virtual void NotifyLocalStateChanged() = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_