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

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

Index: third_party/libaddressinput/chromium/cpp/src/rule.h
diff --git a/third_party/libaddressinput/chromium/cpp/src/rule.h b/third_party/libaddressinput/chromium/cpp/src/rule.h
index a11dff84ef7d28b917ae3b1d019e4ec33d612915..429dc817ef403d4dda4ba36ac8d770f6e7668771 100644
--- a/third_party/libaddressinput/chromium/cpp/src/rule.h
+++ b/third_party/libaddressinput/chromium/cpp/src/rule.h
@@ -52,6 +52,9 @@ class Rule {
   // NEWLINE extension for AddressField enum.
   const std::vector<AddressField>& GetFormat() const { return format_; }
 
+  // Returns the required fields for this rule.
+  const std::vector<AddressField>& GetRequired() const { return required_; }
+
   // Returns the sub-keys for this rule, which are the administrative areas of a
   // country, the localities of an administrative area, or the dependent
   // localities of a locality. For example, the rules for "US" have sub-keys of
@@ -65,6 +68,9 @@ class Rule {
   // Returns the language code of this rule, for example "de".
   const std::string& GetLanguage() const { return language_; }
 
+  // Returns the postal code format, for example "\\d{5}([ \\-]\\d{4})?".
+  const std::string& GetPostalCodeFormat() const { return postal_code_format_; }
+
   // The message string identifier for admin area name. If not set, then
   // INVALID_MESSAGE_ID.
   int GetAdminAreaNameMessageId() const { return admin_area_name_message_id_; }
@@ -77,9 +83,11 @@ class Rule {
 
  private:
   std::vector<AddressField> format_;
+  std::vector<AddressField> required_;
   std::vector<std::string> sub_keys_;
   std::vector<std::string> languages_;
   std::string language_;
+  std::string postal_code_format_;
   int admin_area_name_message_id_;
   int postal_code_name_message_id_;