ash/session_state_observer.cc

   1 // Copyright 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 #include "ash/session_state_observer.h"
   6
   7 #include "ash/session_state_delegate.h"
   8 #include "ash/shell.h"
   9
  10 namespace ash {
  11
  12 ScopedSessionStateObserver::ScopedSessionStateObserver(
  13     ash::SessionStateObserver* observer) : observer_(observer) {
  14   ash::Shell::GetInstance()->session_state_delegate()->
  15       AddSessionStateObserver(observer_);
  16 }
  17
  18 ScopedSessionStateObserver::~ScopedSessionStateObserver() {
  19   ash::Shell::GetInstance()->session_state_delegate()->
  20       RemoveSessionStateObserver(observer_);
  21 }
  22
  23 }  // namespace ash
  24