Index: chrome/browser/prefs/pref_hash_store_impl.h |
diff --git a/chrome/browser/prefs/pref_hash_store_impl.h b/chrome/browser/prefs/pref_hash_store_impl.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1d3f5817e32747b374b50ccdea74fb93d0222514 |
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+++ b/chrome/browser/prefs/pref_hash_store_impl.h |
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+// Copyright 2013 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_PREFS_PREF_HASH_STORE_IMPL_H_ |
+#define CHROME_BROWSER_PREFS_PREF_HASH_STORE_IMPL_H_ |
+ |
+#include <string> |
+ |
+#include "base/basictypes.h" |
+#include "base/compiler_specific.h" |
+#include "base/memory/scoped_ptr.h" |
+#include "chrome/browser/prefs/pref_hash_calculator.h" |
+#include "chrome/browser/prefs/pref_hash_store.h" |
+ |
+class PrefRegistrySimple; |
+class PrefService; |
+ |
+namespace base { |
+class Value; |
+} // namespace base |
+ |
+// Implements PrefHashStoreImpl by storing preference hashes in a PrefService. |
+class PrefHashStoreImpl : public PrefHashStore { |
+ public: |
+ // Constructs a PrefHashStoreImpl that calculates hashes using |
+ // |seed| and |device_id| and stores them in |local_state|. Multiple hash |
+ // stores can use the same |local_state| with distinct |hash_store_id|s. |
+ // |
+ // The same |seed|, |device_id|, and |hash_store_id| must be used to load and |
+ // validate previously stored hashes in |local_state|. |
+ // |
+ // |local_state| must have previously been passed to |RegisterPrefs|. |
+ PrefHashStoreImpl(const std::string& hash_store_id, |
+ const std::string& seed, |
+ const std::string& device_id, |
+ PrefService* local_state); |
+ |
+ // Registers required local state preferences. |
+ static void RegisterPrefs(PrefRegistrySimple* registry); |
+ |
+ // PrefHashStore implementation. |
+ virtual ValueState CheckValue(const std::string& path, |
+ const base::Value* value) const OVERRIDE; |
+ virtual void StoreHash(const std::string& path, |
+ const base::Value* value) OVERRIDE; |
+ |
+ private: |
+ std::string hash_store_id_; |
+ PrefHashCalculator pref_hash_calculator_; |
+ PrefService* local_state_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(PrefHashStoreImpl); |
+}; |
+ |
+#endif // CHROME_BROWSER_PREFS_PREF_HASH_STORE_IMPL_H_ |