Resets detail text color on prepareForReuse

ios/chrome/browser/ui/collection_view/cells/collection_view_account_item.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/ui/collection_view/cells/collection_view_account_item.h"
 
 #include "base/mac/foundation_util.h"
 #import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
+#import "ios/third_party/material_components_ios/src/components/Palettes/src/MaterialPalettes.h"
 #import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 // Padding used on the leading and trailing edges of the cell.
 const CGFloat kHorizontalPadding = 16;
@@ skipping 215 matching lines @@
   }
 }
 
 #pragma mark - UICollectionReusableView
 
 - (void)prepareForReuse {
   [super prepareForReuse];
   self.imageView.image = nil;
   self.textLabel.text = nil;
   self.detailTextLabel.text = nil;
+  self.detailTextLabel.textColor = [[MDCPalette greyPalette] tint500];
   self.errorIcon.image = nil;
   self.accessoryType = MDCCollectionViewCellAccessoryNone;
   self.userInteractionEnabled = YES;
   self.contentView.alpha = 1;
   UIImageView* accessoryImage =
       base::mac::ObjCCastStrict<UIImageView>(self.accessoryView);
   accessoryImage.tintColor =
       [accessoryImage.tintColor colorWithAlphaComponent:1];
 }
 
 #pragma mark - NSObject(Accessibility)
 
 - (NSString*)accessibilityLabel {
   return self.textLabel.text;
 }
 
 - (NSString*)accessibilityValue {
   return self.detailTextLabel.text;
 }
 
 @end