[rac] Parse postal code formats and required fields in libaddressinput.

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

Index: third_party/libaddressinput/chromium/cpp/src/rule.cc
diff --git a/third_party/libaddressinput/chromium/cpp/src/rule.cc b/third_party/libaddressinput/chromium/cpp/src/rule.cc
index a8aba1d8101c63c72ae133dbfaa8e1b0b02599cf..882e783f0b4af291a6c70efb9ce80ee2fd504168 100644
--- a/third_party/libaddressinput/chromium/cpp/src/rule.cc
+++ b/third_party/libaddressinput/chromium/cpp/src/rule.cc
@@ -39,7 +39,9 @@ const char kAdminAreaNameTypeKey[] = "state_name_type";
 const char kFormatKey[] = "fmt";
 const char kLanguageKey[] = "lang";
 const char kLanguagesKey[] = "languages";
+const char kPostalCodeFormatKey[] = "zip";
 const char kPostalCodeNameTypeKey[] = "zip_name_type";
+const char kRequiredKey[] = "require";
 const char kSubKeysKey[] = "sub_keys";
 
 // Used as a separator in a list of items. For example, the list of supported
@@ -112,9 +114,11 @@ const Rule& InitDefaultRule() {
 
 Rule::Rule()
     : format_(),
+      required_(),
       sub_keys_(),
       languages_(),
       language_(),
+      postal_code_format_(),
       admin_area_name_message_id_(INVALID_MESSAGE_ID),
       postal_code_name_message_id_(INVALID_MESSAGE_ID) {}
 
@@ -132,9 +136,11 @@ const Rule& Rule::GetDefault() {
 
 void Rule::CopyFrom(const Rule& rule) {
   format_ = rule.format_;
+  required_ = rule.required_;
   sub_keys_ = rule.sub_keys_;
   languages_ = rule.languages_;
   language_ = rule.language_;
+  postal_code_format_ = rule.postal_code_format_;
   admin_area_name_message_id_ = rule.admin_area_name_message_id_;
   postal_code_name_message_id_ = rule.postal_code_name_message_id_;
 }
@@ -149,6 +155,11 @@ bool Rule::ParseSerializedRule(const std::string& serialized_rule) {
     ParseAddressFieldsFormat(json->GetStringValueForKey(kFormatKey), &format_);
   }
 
+  if (json->HasStringValueForKey(kRequiredKey)) {
+    ParseAddressFieldsRequired(
+        json->GetStringValueForKey(kRequiredKey), &required_);
+  }
+
   if (json->HasStringValueForKey(kSubKeysKey)) {
     SplitString(
         json->GetStringValueForKey(kSubKeysKey), kSeparator, &sub_keys_);
@@ -163,6 +174,10 @@ bool Rule::ParseSerializedRule(const std::string& serialized_rule) {
     language_ = json->GetStringValueForKey(kLanguageKey);
   }
 
+  if (json->HasStringValueForKey(kPostalCodeFormatKey)) {
+    postal_code_format_ = json->GetStringValueForKey(kPostalCodeFormatKey);
+  }
+
   if (json->HasStringValueForKey(kAdminAreaNameTypeKey)) {
     admin_area_name_message_id_ =
         GetMessageIdFromName(json->GetStringValueForKey(kAdminAreaNameTypeKey),