1 // Copyright (c) 2013 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_SESSION_STATE_OBSERVER_H_ 6 #define ASH_SESSION_STATE_OBSERVER_H_ 7 8 #include <string> 9 10 #include "ash/ash_export.h" 11 12 namespace ash { 13 14 class ASH_EXPORT SessionStateObserver { 15 public: 16 // Called when active user has changed. 17 virtual void ActiveUserChanged(const std::string& user_id) {} 18 19 protected: 20 virtual ~SessionStateObserver() {} 21 }; 22 23 } // namespace ash 24 25 #endif // ASH_SESSION_STATE_OBSERVER_H_ 26
