[rac] Temporarily copy libaddressinput to Chrome.

third_party/libaddressinput/chromium/cpp/include/libaddressinput/storage.h

Index: third_party/libaddressinput/chromium/cpp/include/libaddressinput/storage.h
diff --git a/third_party/libaddressinput/chromium/cpp/include/libaddressinput/storage.h b/third_party/libaddressinput/chromium/cpp/include/libaddressinput/storage.h
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index 0000000000000000000000000000000000000000..eb064458d1091ff50412650ada655f8df6488b38
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+++ b/third_party/libaddressinput/chromium/cpp/include/libaddressinput/storage.h
@@ -0,0 +1,59 @@
+// Copyright (C) 2013 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.
+//
+// The interface to be implemented by the user of the library to enable storing
+// the downloaded validation rules (e.g. on disk).
+
+#ifndef I18N_ADDRESSINPUT_STORAGE_H_
+#define I18N_ADDRESSINPUT_STORAGE_H_
+
+#include <libaddressinput/callback.h>
+
+#include <string>
+
+namespace i18n {
+namespace addressinput {
+
+// Stores downloaded validation rules. Sample usage:
+//    class MyStorage : public Storage {
+//     public:
+//      virtual void Put(const std::string& key, const std::string& data) {
+//        ...
+//      }
+//
+//      virtual void Get(const std::string& key,
+//                       const Callback& data_ready) const {
+//        bool success = ...
+//        std::string data = ...
+//        data_ready(success, key, data);
+//      }
+//    };
+class Storage {
+ public:
+  typedef i18n::addressinput::Callback<std::string, std::string> Callback;
+
+  virtual ~Storage() {}
+
+  // Stores |data| for |key|.
+  virtual void Put(const std::string& key, const std::string& data) = 0;
+
+  // Retrieves the data for |key| and invokes the |data_ready| callback.
+  virtual void Get(const std::string& key,
+                   const Callback& data_ready) const = 0;
+};
+
+}  // namespace addressinput
+}  // namespace i18n
+
+#endif  // I18N_ADDRESSINPUT_STORAGE_H_