Use dropdown list for admin areas in pr form.

components/payments/core/address_normalizer.cc

Index: components/payments/core/address_normalizer.cc
diff --git a/components/payments/core/address_normalizer.cc b/components/payments/core/address_normalizer.cc
index 3114c5a89229cfc2a60ca2e02ebaf7f9b13819c1..00c90e033f0438e8a4da874d036abce7e87e1a17 100644
--- a/components/payments/core/address_normalizer.cc
+++ b/components/payments/core/address_normalizer.cc
@@ -4,6 +4,11 @@
 
 #include "components/payments/core/address_normalizer.h"
 
+#include <map>
+#include <memory>
+#include <string>
+#include <vector>
+
 #include <stddef.h>
 #include <utility>
 
@@ -153,9 +158,8 @@ void AddressNormalizer::StartAddressNormalization(
   }
 }
 
-void AddressNormalizer::OnAddressValidationRulesLoaded(
-    const std::string& region_code,
-    bool success) {
+void AddressNormalizer::OnAddressRulesLoaded(const std::string& region_code,
+                                             bool success) {
   // Check if an address normalization is pending.
   auto it = pending_normalization_.find(region_code);
   if (it != pending_normalization_.end()) {
@@ -166,4 +170,4 @@ void AddressNormalizer::OnAddressValidationRulesLoaded(
   }
 }
 
-}  // namespace payments
+}  // namespace payments