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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PREFS_PREF_OBSERVER_H_
#define COMPONENTS_PREFS_PREF_OBSERVER_H_
#include <string>
class PrefService;
// Used internally to the Prefs subsystem to pass preference change
// notifications between PrefService, PrefNotifierImpl and
// PrefChangeRegistrar.
class PrefObserver {
public:
virtual void OnPreferenceChanged(PrefService* service,
const std::string& pref_name) = 0;
};
#endif // COMPONENTS_PREFS_PREF_OBSERVER_H_
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