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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTINGS_OBSERVER_H_ | |
| 6 #define CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTINGS_OBSERVER_H_ | |
| 7 | |
| 8 #include "base/observer_list_threadsafe.h" | |
| 9 #include "chrome/browser/extensions/api/storage/settings_namespace.h" | |
| 10 | |
| 11 namespace extensions { | |
| 12 | |
| 13 // Interface for classes that listen to changes to extension settings. | |
| 14 class SettingsObserver { | |
| 15 public: | |
| 16 // Called when a list of settings have changed for an extension. | |
| 17 virtual void OnSettingsChanged( | |
| 18 const std::string& extension_id, | |
| 19 settings_namespace::Namespace settings_namespace, | |
| 20 const std::string& changes_json) = 0; | |
| 21 | |
| 22 virtual ~SettingsObserver() {} | |
| 23 }; | |
| 24 | |
| 25 typedef ObserverListThreadSafe<SettingsObserver> | |
| 26 SettingsObserverList; | |
| 27 | |
| 28 } // namespace extensions | |
| 29 | |
| 30 #endif // CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTINGS_OBSERVER_H_ | |
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