[rac] Add AddressValidator API.

third_party/libaddressinput/chromium/cpp/src/address_validator.cc

+// 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.
+
+#include <libaddressinput/address_validator.h>
+
+#include <libaddressinput/downloader.h>
+#include <libaddressinput/load_rules_delegate.h>
+#include <libaddressinput/storage.h>
+
+#include <cassert>
+#include <cstddef>
+#include <string>
+
+#include "retriever.h"
+#include "rule_retriever.h"
+#include "validating_storage.h"
+
+namespace i18n {
+namespace addressinput {
+
+AddressValidator::AddressValidator(const Downloader* downloader,
+                                   Storage* storage,
+                                   LoadRulesDelegate* load_rules_delegate)
+    : rule_retriever_(new RuleRetriever(new Retriever(
+          VALIDATION_DATA_URL, downloader, new ValidatingStorage(storage)))),
+      load_rules_delegate_(load_rules_delegate) {}
+
+AddressValidator::~AddressValidator() {}
+
+void AddressValidator::LoadRules(const std::string& country_code) {
+  if (load_rules_delegate_ != NULL) {
+    load_rules_delegate_->OnAddressValidationRulesLoaded(country_code, false);
+  }
+}
+
+AddressValidator::Result AddressValidator::ValidateAddress(
+    const AddressData& address,
+    const AddressProblemFilter& filter,
+    AddressProblems* problems) const {
+  assert(problems != NULL);

[Evan Stade, 2013/12/11 01:21:49]

Typically I think it's nicer to allow null outparams. You might just use this to
check if the rules are ready, for some reason...

[please use gerrit instead, 2013/12/11 02:10:11]

Done.

+  problems->clear();
+  return RULES_NOT_READY;
+}
+
+}  // namespace addressinput
+}  // namespace i18n