Move base/prefs to components/prefs

base/prefs/pref_notifier.h

 // Copyright (c) 2011 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 BASE_PREFS_PREF_NOTIFIER_H_
-#define BASE_PREFS_PREF_NOTIFIER_H_
-
-#include <string>
-
-// Delegate interface used by PrefValueStore to notify its owner about changes
-// to the preference values.
-// TODO(mnissler, danno): Move this declaration to pref_value_store.h once we've
-// cleaned up all public uses of this interface.
-class PrefNotifier {
- public:
-  virtual ~PrefNotifier() {}
-
-  // Sends out a change notification for the preference identified by
-  // |pref_name|.
-  virtual void OnPreferenceChanged(const std::string& pref_name) = 0;
-
-  // Broadcasts the intialization completed notification.
-  virtual void OnInitializationCompleted(bool succeeded) = 0;
-};
-
-#endif  // BASE_PREFS_PREF_NOTIFIER_H_
+// TODO(brettw) remove this forwarding header when prefs is completely moved to
+// components.
+#include "components/prefs/pref_notifier.h"