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// 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 CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTINGS_OBSERVER_H_
#define CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTINGS_OBSERVER_H_
#include "base/observer_list_threadsafe.h"
#include "chrome/browser/extensions/api/storage/settings_namespace.h"
namespace extensions {
// Interface for classes that listen to changes to extension settings.
class SettingsObserver {
public:
// Called when a list of settings have changed for an extension.
virtual void OnSettingsChanged(
const std::string& extension_id,
settings_namespace::Namespace settings_namespace,
const std::string& changes_json) = 0;
virtual ~SettingsObserver() {}
};
typedef ObserverListThreadSafe<SettingsObserver>
SettingsObserverList;
} // namespace extensions
#endif // CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTINGS_OBSERVER_H_
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