[Payment Request] Renames a poorly named property of the AutofillEditItem.

ios/chrome/browser/ui/payments/credit_card_edit_view_controller.mm

Index: ios/chrome/browser/ui/payments/credit_card_edit_view_controller.mm
diff --git a/ios/chrome/browser/ui/payments/credit_card_edit_view_controller.mm b/ios/chrome/browser/ui/payments/credit_card_edit_view_controller.mm
index 98099da63258dc6cb999ecc967fa19ef654ef578..79b8ce458a664413571bd0ecd65e449a5192106c 100644
--- a/ios/chrome/browser/ui/payments/credit_card_edit_view_controller.mm
+++ b/ios/chrome/browser/ui/payments/credit_card_edit_view_controller.mm
@@ -95,7 +95,7 @@ typedef NS_ENUM(NSInteger, ItemType) {
       if (field.autofillUIType == AutofillUITypeCreditCardNumber) {
         AutofillEditItem* item =
             base::mac::ObjCCastStrict<AutofillEditItem>(field.item);
-        item.cardTypeIcon =
+        item.identifyingIcon =
             [_dataSource cardTypeIconFromCardNumber:item.textFieldValue];
       }
     }
@@ -141,7 +141,7 @@ typedef NS_ENUM(NSInteger, ItemType) {
     NSString* updatedText =
         [textField.text stringByReplacingCharactersInRange:range
                                                 withString:newText];
-    item.cardTypeIcon = [_dataSource cardTypeIconFromCardNumber:updatedText];
+    item.identifyingIcon = [_dataSource cardTypeIconFromCardNumber:updatedText];
 
     // Update the cell.
     [self reconfigureCellsForItems:@[ item ]];