1// Copyright 2013 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_PREFS_PREF_HASH_STORE_H_
6#define CHROME_BROWSER_PREFS_PREF_HASH_STORE_H_
7
8#include "base/memory/scoped_ptr.h"
9
10class HashStoreContents;
11class PrefHashStoreTransaction;
12
13// Holds the configuration and implementation used to calculate and verify
14// preference MACs.
15// TODO(gab): Rename this class as it is no longer a store.
16class PrefHashStore {
17 public:
18  virtual ~PrefHashStore() {}
19
20  // Returns a PrefHashStoreTransaction which can be used to perform a series
21  // of operations on the hash store. |storage| MAY be used as the backing store
22  // depending on the implementation. Therefore the HashStoreContents used for
23  // related transactions should correspond to the same underlying data store.
24  virtual scoped_ptr<PrefHashStoreTransaction> BeginTransaction(
25      scoped_ptr<HashStoreContents> storage) = 0;
26};
27
28#endif  // CHROME_BROWSER_PREFS_PREF_HASH_STORE_H_
29