CollectionViewTextItem no longer styles CollectionViewTextCell

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

Index: ios/chrome/browser/ui/settings/accounts_collection_view_controller.mm
diff --git a/ios/chrome/browser/ui/settings/accounts_collection_view_controller.mm b/ios/chrome/browser/ui/settings/accounts_collection_view_controller.mm
index 9e92d473efa3816a451ab650569d19802e8503a5..04904f0de5435434b15ef50072b35fb0b968b7f1 100644
--- a/ios/chrome/browser/ui/settings/accounts_collection_view_controller.mm
+++ b/ios/chrome/browser/ui/settings/accounts_collection_view_controller.mm
@@ -31,6 +31,7 @@
 #import "ios/chrome/browser/ui/authentication/signin_interaction_controller.h"
 #import "ios/chrome/browser/ui/collection_view/cells/MDCCollectionViewCell+Chrome.h"
 #import "ios/chrome/browser/ui/collection_view/cells/collection_view_account_item.h"
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_text_cell.h"
 #import "ios/chrome/browser/ui/collection_view/cells/collection_view_text_item.h"
 #import "ios/chrome/browser/ui/collection_view/collection_view_model.h"
 #import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
@@ -49,6 +50,8 @@
 #import "ios/public/provider/chrome/browser/signin/chrome_identity.h"
 #import "ios/public/provider/chrome/browser/signin/chrome_identity_browser_opener.h"
 #import "ios/public/provider/chrome/browser/signin/chrome_identity_service.h"
+#import "ios/third_party/material_components_ios/src/components/Palettes/src/MaterialPalettes.h"
+#import "ios/third_party/material_components_ios/src/components/Typography/src/MaterialTypography.h"
 #import "net/base/mac/url_conversions.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 
@@ -242,7 +245,6 @@ typedef NS_ENUM(NSInteger, ItemType) {
       [[CollectionViewTextItem alloc] initWithType:ItemTypeHeader];
   header.text = l10n_util::GetNSString(IDS_IOS_OPTIONS_ACCOUNTS_DESCRIPTION);
   header.accessibilityIdentifier = kSettingsHeaderId;
-  header.textColor = [[MDCPalette greyPalette] tint500];
   return header;
 }
 
@@ -370,6 +372,28 @@ typedef NS_ENUM(NSInteger, ItemType) {
   }
 }
 
+#pragma mark - UICollectionViewDataSource
+
+- (UICollectionViewCell*)collectionView:(UICollectionView*)collectionView
+                 cellForItemAtIndexPath:(nonnull NSIndexPath*)indexPath {

[gambard, 2017/04/14 07:04:03]

Is this working?
I am surprised, it is a header not a cell. You should probably implement
- (UICollectionReusableView*)collectionView:(UICollectionView*)collectionView	
           viewForSupplementaryElementOfKind:(NSString*)kind	
                                 atIndexPath:(NSIndexPath*)indexPath

This is also true for the other header through the CL.

+  UICollectionViewCell* cell =
+      [super collectionView:collectionView cellForItemAtIndexPath:indexPath];
+
+  NSInteger itemType =
+      [self.collectionViewModel itemTypeForIndexPath:indexPath];
+  switch (itemType) {
+    case ItemTypeHeader: {
+      CollectionViewTextCell* textCell =
+          base::mac::ObjCCastStrict<CollectionViewTextCell>(cell);
+      textCell.textLabel.textColor = [[MDCPalette greyPalette] tint500];
+      break;
+    }
+    default:
+      break;
+  }
+  return cell;
+}
+
 #pragma mark - MDCCollectionViewStylingDelegate
 
 - (CGFloat)collectionView:(UICollectionView*)collectionView