[Payment Request] Contact Info editor

ios/chrome/browser/ui/payments/payment_request_edit_view_controller.h

Index: ios/chrome/browser/ui/payments/payment_request_edit_view_controller.h
diff --git a/ios/chrome/browser/ui/payments/payment_request_edit_view_controller.h b/ios/chrome/browser/ui/payments/payment_request_edit_view_controller.h
index 4352f8ed50c9450808fc129d0d1041df01d5427b..8aea55d2af78e6cffdc23c1d7836f6122e8527c8 100644
--- a/ios/chrome/browser/ui/payments/payment_request_edit_view_controller.h
+++ b/ios/chrome/browser/ui/payments/payment_request_edit_view_controller.h
@@ -21,11 +21,6 @@ extern NSString* const kWarningMessageAccessibilityID;
 // Delegate protocol for PaymentRequestEditViewController.
 @protocol PaymentRequestEditViewControllerDelegate<NSObject>
 
-// Notifies the delegate that the user has selected |field|.
-- (void)paymentRequestEditViewController:
-            (PaymentRequestEditViewController*)controller
-                          didSelectField:(EditorField*)field;
-
 // Notifies the delegate that the user has finished editing the editor fields.
 - (void)paymentRequestEditViewController:
             (PaymentRequestEditViewController*)controller
@@ -36,6 +31,13 @@ extern NSString* const kWarningMessageAccessibilityID;
 - (void)paymentRequestEditViewControllerDidCancel:
     (PaymentRequestEditViewController*)controller;
 
+@optional
+
+// Notifies the delegate that the user has selected |field|.
+- (void)paymentRequestEditViewController:
+            (PaymentRequestEditViewController*)controller
+                          didSelectField:(EditorField*)field;
+
 @end
 
 // Validator protocol for PaymentRequestEditViewController.