[Payment Request] Adds address normalization on iOS.

ios/chrome/browser/autofill/validation_rules_storage_factory.h

+// Copyright 2017 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.
+
+#ifndef IOS_CHROME_BROWSER_AUTOFILL_VALIDATION_RULES_STORAGE_FACTORY_H_
+#define IOS_CHROME_BROWSER_AUTOFILL_VALIDATION_RULES_STORAGE_FACTORY_H_
+
+#include <memory>
+
+#include "base/lazy_instance.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+
+namespace i18n {
+namespace addressinput {
+class Storage;
+}
+}
+
+class JsonPrefStore;
+
+namespace autofill {
+
+// Creates Storage objects, all of which are backed by a common pref store.
+// Adapted for iOS from
+// chrome/browser/autofill/validation_rules_storage_factory.{cc,h}, to use
+// storage paths specific to iOS.
+class ValidationRulesStorageFactory {
+ public:
+  static std::unique_ptr<::i18n::addressinput::Storage> CreateStorage();
+
+ private:
+  friend struct base::LazyInstanceTraitsBase<ValidationRulesStorageFactory>;
+
+  ValidationRulesStorageFactory();
+  ~ValidationRulesStorageFactory();
+
+  scoped_refptr<JsonPrefStore> json_pref_store_;
+
+  DISALLOW_COPY_AND_ASSIGN(ValidationRulesStorageFactory);
+};
+
+}  // namespace autofill
+
+#endif  // IOS_CHROME_BROWSER_AUTOFILL_VALIDATION_RULES_STORAGE_FACTORY_H_