Proper styling of the footer string.

ios/chrome/browser/payments/payment_request_view_controller.mm

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/chrome/browser/payments/payment_request_view_controller.h"
 
 #include "base/mac/foundation_util.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 42 matching lines @@
 using ::payment_request_util::GetEmailLabelFromAutofillProfile;
 using ::payment_request_util::GetShippingSectionTitle;
 using ::payment_request_util::GetShippingAddressSelectorTitle;
 using ::payment_request_util::GetShippingOptionSelectorTitle;
 
 // String used as the "URL" to take the user to the settings page for card and
 // address options. Needs to be URL-like; otherwise, the link will not appear
 // as a link in the UI (see setLabelLinkURL: in CollectionViewFooterCell).
 const char kSettingsURL[] = "settings://card-and-address";
 
+const CGFloat kFooterCellHorizontalPadding = 16;
+
 }  // namespace
 
 NSString* const kPaymentRequestCollectionViewID =
     @"kPaymentRequestCollectionViewID";
 
 namespace {
 
 const CGFloat kButtonEdgeInset = 9;
 const CGFloat kSeparatorEdgeInset = 14;
 
@@ skipping 442 matching lines @@
       [self.collectionViewModel itemTypeForIndexPath:indexPath];
   switch (itemType) {
     case ItemTypeAddShippingAddress: {
       CollectionViewDetailCell* detailCell =
           base::mac::ObjCCastStrict<CollectionViewDetailCell>(cell);
       detailCell.detailTextLabel.font = [MDCTypography body2Font];
       detailCell.detailTextLabel.textColor =
           [[MDCPalette cr_bluePalette] tint700];
       break;
     }
+    case ItemTypeFooterText: {
+      CollectionViewFooterCell* footerCell =
+          base::mac::ObjCCastStrict<CollectionViewFooterCell>(cell);
+      footerCell.textLabel.font = [MDCTypography body2Font];
+      footerCell.textLabel.textColor = [[MDCPalette greyPalette] tint600];
+      footerCell.textLabel.shadowColor = nil;  // No shadow.
+      footerCell.horizontalPadding = kFooterCellHorizontalPadding;
+      break;
+    }
     default:
       break;
   }
   return cell;
 }
 
 #pragma mark UICollectionViewDelegate
 
 - (void)collectionView:(UICollectionView*)collectionView
     didSelectItemAtIndexPath:(NSIndexPath*)indexPath {
@@ skipping 83 matching lines @@
 
 - (BOOL)collectionView:(UICollectionView*)collectionView
     shouldHideItemBackgroundAtIndexPath:(NSIndexPath*)indexPath {
   // No background on the footer text item.
   NSInteger sectionIdentifier =
       [self.collectionViewModel sectionIdentifierForSection:indexPath.section];
   return sectionIdentifier == SectionIdentifierFooter ? YES : NO;
 }
 
 @end