Pull cacheinvalidations code directory into chromium repo.

third_party/cacheinvalidation/src/google/cacheinvalidation/impl/safe-storage.h

Index: third_party/cacheinvalidation/src/google/cacheinvalidation/impl/safe-storage.h
diff --git a/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/safe-storage.h b/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/safe-storage.h
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index 0000000000000000000000000000000000000000..b6ec2dcbbb26a1bb94676eb47993a4bfa26911db
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+++ b/third_party/cacheinvalidation/src/google/cacheinvalidation/impl/safe-storage.h
@@ -0,0 +1,72 @@
+// 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.
+
+//
+// An implementation of the Storage resource that schedules the callbacks on the
+// given scheduler thread.
+
+#ifndef GOOGLE_CACHEINVALIDATION_IMPL_SAFE_STORAGE_H_
+#define GOOGLE_CACHEINVALIDATION_IMPL_SAFE_STORAGE_H_
+
+#include "google/cacheinvalidation/include/system-resources.h"
+#include "google/cacheinvalidation/include/types.h"
+
+namespace invalidation {
+
+// An implementation of the Storage resource that schedules the callbacks on the
+// given scheduler thread.
+class SafeStorage : public Storage {
+ public:
+  /* Creates a new instance. Storage for |delegate| is owned by caller. */
+  explicit SafeStorage(Storage* delegate) : delegate_(delegate) {
+  }
+
+  virtual ~SafeStorage() {}
+
+  // All public methods below are methods of the Storage interface.
+  virtual void SetSystemResources(SystemResources* resources);
+
+  virtual void WriteKey(const string& key, const string& value,
+                        WriteKeyCallback* done);
+
+  virtual void ReadKey(const string& key, ReadKeyCallback* done);
+
+  virtual void DeleteKey(const string& key, DeleteKeyCallback* done);
+
+  virtual void ReadAllKeys(ReadAllKeysCallback* key_callback);
+
+ private:
+  /* Callback invoked when WriteKey finishes. */
+  void WriteCallback(WriteKeyCallback* done, Status status);
+
+  /* Callback invoked when ReadKey finishes. */
+  void ReadCallback(ReadKeyCallback* done, StatusStringPair read_result);
+
+  /* Callback invoked when DeleteKey finishes. */
+  void DeleteCallback(DeleteKeyCallback* done, bool result);
+
+  /* Callback invoked when ReadAllKeys finishes. */
+  void ReadAllCallback(ReadAllKeysCallback* key_callback,
+                       StatusStringPair result);
+
+  /* The delegate to which the calls are forwarded. */
+  Storage* delegate_;
+
+  /* The scheduler on which the callbacks are scheduled. */
+  Scheduler* scheduler_;
+};
+
+}  // namespace invalidation
+
+#endif  // GOOGLE_CACHEINVALIDATION_IMPL_SAFE_STORAGE_H_