Pull cacheinvalidations code directory into chromium repo.

third_party/cacheinvalidation/src/google/cacheinvalidation/impl/persistence-utils.h

Index: third_party/cacheinvalidation/src/google/cacheinvalidation/impl/persistence-utils.h
diff --git a/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/persistence-utils.h b/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/persistence-utils.h
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index 0000000000000000000000000000000000000000..e9dc96ee268c8d6531908ef107a2680c38532e0a
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+++ b/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/persistence-utils.h
@@ -0,0 +1,54 @@
+// Copyright 2012 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Utility methods for handling the Ticl persistent state.
+
+#ifndef GOOGLE_CACHEINVALIDATION_IMPL_PERSISTENCE_UTILS_H_
+#define GOOGLE_CACHEINVALIDATION_IMPL_PERSISTENCE_UTILS_H_
+
+#include <string>
+
+#include "google/cacheinvalidation/include/system-resources.h"
+#include "google/cacheinvalidation/deps/digest-function.h"
+#include "google/cacheinvalidation/impl/client-protocol-namespace-fix.h"
+#include "google/cacheinvalidation/impl/log-macro.h"
+
+namespace invalidation {
+
+class PersistenceUtils {
+ public:
+  /* Serializes a Ticl state blob. */
+  static void SerializeState(
+      PersistentTiclState state, DigestFunction* digest_fn, string* result);
+
+  /* Deserializes a Ticl state blob. Returns whether the parsed state could be
+   * parsed.
+   */
+  static bool DeserializeState(
+      Logger* logger, const string& state_blob_bytes, DigestFunction* digest_fn,
+      PersistentTiclState* ticl_state);
+
+  /* Returns a message authentication code over state. */
+  static string GenerateMac(
+      const PersistentTiclState& state, DigestFunction* digest_fn);
+
+ private:
+  PersistenceUtils() {
+    // Prevent instantiation.
+  }
+};  // class PersistenceUtils
+
+}  // namespace invalidation
+
+#endif  // GOOGLE_CACHEINVALIDATION_IMPL_PERSISTENCE_UTILS_H_