Use upstream libaddressinput in Chrome.

third_party/libaddressinput/chromium/fallback_data_store.h

 // Copyright (C) 2014 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.
 
-#ifndef I18N_ADDRESSINPUT_FALLBACK_DATA_STORE_H_
-#define I18N_ADDRESSINPUT_FALLBACK_DATA_STORE_H_
+#ifndef THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_FALLBACK_DATA_STORE_H_
+#define THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_FALLBACK_DATA_STORE_H_
 
 #include <string>
 
-namespace i18n {
-namespace addressinput {
+namespace autofill {
 
 class FallbackDataStore {
  public:
-  // Gets default data for |key|. Should only be used as a last resort after
-  // attempts to check the local cache or the webserver have failed.
+  // Gets stale, but valid static data for |key|. Should only be used as a last
+  // resort after attempts to check the local cache or the webserver have
+  // failed.
   static bool Get(const std::string& key, std::string* data);
 };
 
-}  // namespace addressinput
-}  // namespace i18n
+}  // namespace autofill
 
-#endif  // I18N_ADDRESSINPUT_FALLBACK_DATA_STORE_H_
+#endif  // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_FALLBACK_DATA_STORE_H_