Adding "UserAddedToSession" notifier to the SessionStateObserver

chrome/browser/chromeos/login/user_manager_impl.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_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 261 matching lines @@
 
   // Notifies the UI about a change to the user list.
   void NotifyUserListChanged();
 
   // Notifies observers that merge session state had changed.
   void NotifyMergeSessionStateChanged();
 
   // Notifies observers that active user has changed.
   void NotifyActiveUserChanged(const User* active_user);
 
+  // Notifies observers that another user was added to the session.
+  void NotifyUserAddedToSession(const User* added_user);
+
   // Notifies observers that active user_id hash has changed.
   void NotifyActiveUserHashChanged(const std::string& hash);
 
   // Notifies observers that user pending sessions restore has finished.
   void NotifyPendingUserSessionsRestoreFinished();
 
   // Returns true if there is non-committed user creation transaction.
   bool HasFailedLocallyManagedUserCreationTransaction();
 
   // Attempts to clean up data that could be left from failed user creation.
@@ skipping 145 matching lines @@
   scoped_ptr<MultiProfileUserController> multi_profile_user_controller_;
   scoped_ptr<MultiProfileFirstRunNotification>
       multi_profile_first_run_notification_;
 
   DISALLOW_COPY_AND_ASSIGN(UserManagerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_