Home | History | Annotate | Download | only in ash 
      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