Revert of Move base/prefs to components/prefs

components/prefs/pref_notifier.h

Index: components/prefs/pref_notifier.h
diff --git a/components/prefs/pref_notifier.h b/components/prefs/pref_notifier.h
deleted file mode 100644
index e0df260c514821fe882111c8813da32faea51ce8..0000000000000000000000000000000000000000
--- a/components/prefs/pref_notifier.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// 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_