Added login screen mode for adding users into session.

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 "chrome/browser/chromeos/login/user.h"
@@ skipping 89 matching lines @@
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
   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;
 
+  // Returns list of users admitted for logging in into multiprofile session.
+  virtual UserList GetUsersAdmittedForMultiProfile() const = 0;
+
   // Returns a list of users who are currently logged in.
   virtual const UserList& GetLoggedInUsers() const = 0;
 
   // Returns a list of users who are currently logged in in the LRU order -
   // so the active user is the first one in the list. If there is no user logged
   // in, the current user will be returned.
   virtual const UserList& GetLRULoggedInUsers() = 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 236 matching lines @@
   ScopedTestUserManager();
   ~ScopedTestUserManager();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ScopedTestUserManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_