[iOS] Set credit card icon using the saved network.

ios/chrome/browser/ui/settings/autofill_credit_card_edit_collection_view_controller.mm

Index: ios/chrome/browser/ui/settings/autofill_credit_card_edit_collection_view_controller.mm
diff --git a/ios/chrome/browser/ui/settings/autofill_credit_card_edit_collection_view_controller.mm b/ios/chrome/browser/ui/settings/autofill_credit_card_edit_collection_view_controller.mm
index ecfbcfbd9459ab85d9df085635fde6ffca8aad31..4eeab2b8db19279e352bf461bd892f3bbeccd210 100644
--- a/ios/chrome/browser/ui/settings/autofill_credit_card_edit_collection_view_controller.mm
+++ b/ios/chrome/browser/ui/settings/autofill_credit_card_edit_collection_view_controller.mm
@@ -155,21 +155,21 @@ typedef NS_ENUM(NSInteger, ItemType) {
       toSectionWithIdentifier:SectionIdentifierFields];
 
   // Card number (PAN).
-  AutofillEditItem* cardNumberitem =
+  AutofillEditItem* cardNumberItem =
       [[AutofillEditItem alloc] initWithType:ItemTypeCardNumber];
-  cardNumberitem.textFieldName =
+  cardNumberItem.textFieldName =
       l10n_util::GetNSString(IDS_IOS_AUTOFILL_CARD_NUMBER);
   // Never show full card number for Wallet cards, even if copied locally.
-  cardNumberitem.textFieldValue =
+  cardNumberItem.textFieldValue =
       autofill::IsCreditCardLocal(_creditCard)
           ? base::SysUTF16ToNSString(_creditCard.number())
-          : base::SysUTF16ToNSString(_creditCard.LastFourDigits());
-  cardNumberitem.textFieldEnabled = isEditing;
-  cardNumberitem.autofillUIType = AutofillUITypeCreditCardNumber;
-  cardNumberitem.keyboardType = UIKeyboardTypeNumberPad;
-  cardNumberitem.identifyingIcon =
-      [self cardTypeIconFromCardNumber:cardNumberitem.textFieldValue];
-  [model addItem:cardNumberitem
+          : base::SysUTF16ToNSString(_creditCard.NetworkAndLastFourDigits());
+  cardNumberItem.textFieldEnabled = isEditing;
+  cardNumberItem.autofillUIType = AutofillUITypeCreditCardNumber;
+  cardNumberItem.keyboardType = UIKeyboardTypeNumberPad;
+  cardNumberItem.identifyingIcon =
+      [self cardTypeIconFromNetwork:_creditCard.network().c_str()];
+  [model addItem:cardNumberItem
       toSectionWithIdentifier:SectionIdentifierFields];
 
   // Expiration month.
@@ -232,7 +232,9 @@ typedef NS_ENUM(NSInteger, ItemType) {
     NSString* updatedText =
         [textField.text stringByReplacingCharactersInRange:range
                                                 withString:newText];
-    item.identifyingIcon = [self cardTypeIconFromCardNumber:updatedText];
+    const char* network = autofill::CreditCard::GetCardNetwork(
+        base::SysNSStringToUTF16(updatedText));
+    item.identifyingIcon = [self cardTypeIconFromNetwork:network];
     // Update the cell.
     [self reconfigureCellsForItems:@[ item ]];
   }
@@ -300,9 +302,7 @@ typedef NS_ENUM(NSInteger, ItemType) {
 
 #pragma mark - Helper Methods
 
-- (UIImage*)cardTypeIconFromCardNumber:(NSString*)cardNumber {
-  const char* network = autofill::CreditCard::GetCardNetwork(
-      base::SysNSStringToUTF16(cardNumber));
+- (UIImage*)cardTypeIconFromNetwork:(const char*)network {
   if (network != autofill::kGenericCard) {
     int resourceID =
         autofill::data_util::GetPaymentRequestData(network).icon_resource_id;