[Autofill, Sync] Sync additional Autofill address fields for i18n.

sync/protocol/autofill_specifics.proto

Index: sync/protocol/autofill_specifics.proto
diff --git a/sync/protocol/autofill_specifics.proto b/sync/protocol/autofill_specifics.proto
index f816e90da6fcdad0cbf3603f6e7fc7ee79b80c7c..1402e47d85e30f77b8095819d5a4f71fe5bd3306 100644
--- a/sync/protocol/autofill_specifics.proto
+++ b/sync/protocol/autofill_specifics.proto
@@ -28,7 +28,7 @@ message AutofillProfileSpecifics {
   repeated string email_address = 5;
   optional string company_name = 6;
 
-  // Home address.
+  // Address.
   optional string address_home_line1 = 7;
   optional string address_home_line2 = 8;
   optional string address_home_city = 9;
@@ -36,6 +36,11 @@ message AutofillProfileSpecifics {
   optional string address_home_zip = 11;
   optional string address_home_country = 12;
 
+  // Additional address fields for i18n.
+  optional string address_home_street_address = 17;
+  optional string address_home_sorting_code = 18;
+  optional string address_home_dependent_locality = 19;
+
   // Phone.
   repeated string phone_home_whole_number = 13;