Expose font and color of the main and secondary texts in CollectionViewTextItem

ios/chrome/browser/payments/shipping_option_selection_view_controller.mm

Index: ios/chrome/browser/payments/shipping_option_selection_view_controller.mm
diff --git a/ios/chrome/browser/payments/shipping_option_selection_view_controller.mm b/ios/chrome/browser/payments/shipping_option_selection_view_controller.mm
index 65ca72208ab18ff7c7e35b9315a989190806d844..fa2bfbc249c2a2f4d898869cf99afe20ac88d949 100644
--- a/ios/chrome/browser/payments/shipping_option_selection_view_controller.mm
+++ b/ios/chrome/browser/payments/shipping_option_selection_view_controller.mm
@@ -101,6 +101,12 @@ typedef NS_ENUM(NSInteger, ItemType) {
     item.detailText =
         payment_request_utils::FormattedCurrencyString(value, currencyCode);
 
+    // Styling.
+    item.textFont = [MDCTypography body2Font];
+    item.textColor = [[MDCPalette greyPalette] tint900];
+    item.detailTextFont = [MDCTypography body1Font];
+    item.detailTextColor = [[MDCPalette greyPalette] tint900];
+
     if (_selectedShippingOption == shippingOption) {
       item.accessoryType = MDCCollectionViewCellAccessoryCheckmark;
       _selectedItem = item;
@@ -122,27 +128,6 @@ typedef NS_ENUM(NSInteger, ItemType) {
       UIEdgeInsetsMake(0, kSeparatorEdgeInset, 0, kSeparatorEdgeInset);
 }
 
-#pragma mark UICollectionViewDataSource
-
-- (UICollectionViewCell*)collectionView:(UICollectionView*)collectionView
-                 cellForItemAtIndexPath:(nonnull NSIndexPath*)indexPath {
-  UICollectionViewCell* cell =
-      [super collectionView:collectionView cellForItemAtIndexPath:indexPath];
-
-  NSInteger itemType =
-      [self.collectionViewModel itemTypeForIndexPath:indexPath];
-  DCHECK(ItemTypeShippingOption == itemType);
-
-  MDCCollectionViewTextCell* textCell =
-      base::mac::ObjCCastStrict<MDCCollectionViewTextCell>(cell);
-  textCell.textLabel.font = [MDCTypography body2Font];
-  textCell.textLabel.textColor = [[MDCPalette greyPalette] tint900];
-  textCell.detailTextLabel.font = [MDCTypography body1Font];
-  textCell.detailTextLabel.textColor = [[MDCPalette greyPalette] tint900];
-
-  return cell;
-}
-
 #pragma mark UICollectionViewDelegate
 
 - (void)collectionView:(UICollectionView*)collectionView