ash/system/user/user_observer.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_SYSTEM_USER_USER_OBSERVER_H_
   6 #define ASH_SYSTEM_USER_USER_OBSERVER_H_
   7
   8 #include "ash/ash_export.h"
   9
  10 namespace ash {
  11
  12 class ASH_EXPORT UserObserver {
  13  public:
  14   virtual ~UserObserver() {}
  15
  16   // A user got updated / changed.
  17   virtual void OnUserUpdate() = 0;
  18
  19   // A user was added to the existing session.
  20   virtual void OnUserAddedToSession() = 0;
  21 };
  22
  23 }  // namespace ash
  24
  25 #endif  // ASH_SYSTEM_USER_USER_OBSERVER_H_