[rac] Temporarily copy libaddressinput to Chrome.

third_party/libaddressinput/chromium/util/json.h

-// 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.
-//
-// This class provides the same interface as ../src/cpp/src/util/json.h but with
-// a Chromium-specific JSON parser. This is because it didn't make much sense to
-// have 2 JSON parsers in Chrome's code base, and the standalone library opted
-// to use rapidjson instead of jsoncpp. See the other file for an explanation of
-// what this class does.
-
-#ifndef THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_UTIL_JSON_H_
-#define THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_UTIL_JSON_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/values.h"
-
-namespace i18n {
-namespace addressinput {
-
-class Json {
- public:
-  Json();
-  ~Json();
-
-  bool ParseObject(const std::string& json);
-  bool HasStringValueForKey(const std::string& key) const;
-  std::string GetStringValueForKey(const std::string& key) const;
-
- private:
-  scoped_ptr<base::DictionaryValue> dict_;
-
-  DISALLOW_COPY_AND_ASSIGN(Json);
-};
-
-}  // namespace addressinput
-}  // namespace i18n
-
-#endif  // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_UTIL_JSON_H_