Add billing address as a mandatory field of Payments credit cards.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 6d4546308ff1dc944a4cc34b96772aa7c87159ff..7cd0eeb128e18b873dbba4d52f484e53054dce75 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -7478,6 +7478,7 @@ I don't think this site should be blocked!
         <message name="IDS_OPTIONS_PASSWORDS_AUTOLOGIN" desc="The label of the 'autologinEnabled' checkbox">
           Offer to sign in to Google sites automatically with this account
         </message>
+        <!-- TODO(718146) Move autofill strings to autofill_strings.grd -->
         <message name="IDS_OPTIONS_AUTOFILL_ENABLE" desc="The label of the 'Ask me to enable Autofill' radio button">
           Enable Autofill to fill out web forms in a single click.
         </message>
@@ -7548,6 +7549,12 @@ I don't think this site should be blocked!
         <message name="IDS_AUTOFILL_FIELD_LABEL_EXPIRATION_YEAR" desc="The label of the Expiration date entry.">
           Expiration year
         </message>
+        <message name="IDS_AUTOFILL_FIELD_LABEL_BILLING_ADDRESS" desc="The label of the Billing Address chooser.">
+          Billing address
+        </message>
+        <message name="IDS_AUTOFILL_BUTTON_LABEL_ADD_BILLING_ADDRESS" desc="The label of the button to add a new billing address.">
+          Add billing address
+        </message>
 
         <!-- Extension settings -->
         <message name="IDS_MANAGE_EXTENSIONS_SETTING_WINDOWS_TITLE" desc="Title that appears in the dialogue title bar for manage extensions settings">