// Copyright 2014 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 EXTENSIONS_BROWSER_API_STORAGE_SETTINGS_STORAGE_FACTORY_H_ #define EXTENSIONS_BROWSER_API_STORAGE_SETTINGS_STORAGE_FACTORY_H_ #include <string> #include "base/files/file_path.h" #include "base/memory/ref_counted.h" class ValueStore; namespace extensions { // Factory for creating SettingStorage instances. // // Refcouted because it's just too messy to distribute these objects between // ValueStoreCache instances any other way. class SettingsStorageFactory : public base::RefCountedThreadSafe<SettingsStorageFactory> { public: // Creates a new ValueStore area for an extension under |base_path|. // Return NULL to indicate failure. Must be called on the FILE thread. virtual ValueStore* Create(const base::FilePath& base_path, const std::string& extension_id) = 0; // Deletes the database for the extension, if one exists. // Note: it is important to delete references to the database if any are // held, because ValueStores will create themselves if there is no file. virtual void DeleteDatabaseIfExists(const base::FilePath& base_path, const std::string& extension_id) = 0; protected: friend class base::RefCountedThreadSafe<SettingsStorageFactory>; virtual ~SettingsStorageFactory() {} }; } // namespace extensions #endif // EXTENSIONS_BROWSER_API_STORAGE_SETTINGS_STORAGE_FACTORY_H_