Replace more ObserverList with base::ObserverList.

chromeos/login/login_state.h

 // Copyright (c) 2013 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 CHROMEOS_LOGIN_LOGIN_STATE_H_
 #define CHROMEOS_LOGIN_LOGIN_STATE_H_
 
 #include "base/basictypes.h"
 #include "base/observer_list.h"
 #include "chromeos/chromeos_export.h"
@@ skipping 88 matching lines @@
 
  private:
   LoginState();
   virtual ~LoginState();
 
   void NotifyObservers();
 
   LoggedInState logged_in_state_;
   LoggedInUserType logged_in_user_type_;
   std::string primary_user_hash_;
-  ObserverList<Observer> observer_list_;
+  base::ObserverList<Observer> observer_list_;
 
   // If true, it always thinks the current status as logged in. Set to true by
   // default running on a Linux desktop without flags and test cases. To test
   // behaviors with a specific login state, call set_always_logged_in(false).
   bool always_logged_in_;
 
   DISALLOW_COPY_AND_ASSIGN(LoginState);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_LOGIN_LOGIN_STATE_H_