[Payments] Show admin area complete names on PR form.

third_party/libaddressinput/chromium/chrome_address_validator.h

Index: third_party/libaddressinput/chromium/chrome_address_validator.h
diff --git a/third_party/libaddressinput/chromium/chrome_address_validator.h b/third_party/libaddressinput/chromium/chrome_address_validator.h
index 7a2c7c6f72bde9b3daa0dea85ff4956d03e4a883..caee5281b0ddff3ecec875b3aa7e79244a10c243 100644
--- a/third_party/libaddressinput/chromium/chrome_address_validator.h
+++ b/third_party/libaddressinput/chromium/chrome_address_validator.h
@@ -10,6 +10,7 @@
 #include <map>
 #include <memory>
 #include <string>
+#include <utility>
 #include <vector>
 
 #include "base/macros.h"
@@ -98,7 +99,7 @@ class AddressValidator {
   // (recorded as rule) indicated by |region_code|. So, if the |region_code| is
   // a country code, sub-region means the country's admin area.
   // This function should be called when the rules are loaded.
-  virtual std::vector<std::string> GetRegionSubKeys(
+  virtual std::vector<std::pair<std::string, std::string>> GetRegionSubKeys(
       const std::string& region_code);
 
   // Validates the |address| and populates |problems| with the validation