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

ios/chrome/browser/ui/collection_view/cells/collection_view_text_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_text_item.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"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 @implementation CollectionViewTextItem
 
 @synthesize accessoryType = _accessoryType;
 @synthesize text = _text;
 @synthesize detailText = _detailText;
 @synthesize image = _image;
+@synthesize textFont = _textFont;
+@synthesize textColor = _textColor;
+@synthesize detailTextFont = _detailTextFont;
+@synthesize detailTextColor = _detailTextColor;
 
 - (instancetype)initWithType:(NSInteger)type {
   self = [super initWithType:type];
   if (self) {
     self.cellClass = [MDCCollectionViewTextCell class];
   }
   return self;
 }
 
+- (UIFont*)textFont {
+  if (!_textFont) {
+    _textFont = [[MDFRobotoFontLoader sharedInstance] mediumFontOfSize:14];
+  }
+  return _textFont;
+}
+
+- (UIColor*)textColor {
+  if (!_textColor) {
+    _textColor = [[MDCPalette greyPalette] tint900];
+  }
+  return _textColor;
+}
+
+- (UIFont*)detailTextFont {
+  if (!_detailTextFont) {
+    _detailTextFont =
+        [[MDFRobotoFontLoader sharedInstance] regularFontOfSize:14];
+  }
+  return _detailTextFont;
+}
+
+- (UIColor*)detailTextColor {
+  if (!_detailTextColor) {
+    _detailTextColor = [[MDCPalette greyPalette] tint500];
+  }
+  return _detailTextColor;
+}
+
 #pragma mark CollectionViewItem
 
 - (void)configureCell:(MDCCollectionViewTextCell*)cell {
   [super configureCell:cell];
   cell.accessoryType = self.accessoryType;
   cell.textLabel.text = self.text;
   cell.detailTextLabel.text = self.detailText;
   cell.imageView.image = self.image;
   cell.isAccessibilityElement = YES;
   if (self.detailText.length == 0) {
     cell.accessibilityLabel = self.text;
   } else {
     cell.accessibilityLabel =
         [NSString stringWithFormat:@"%@, %@", self.text, self.detailText];
   }
 
   // Styling.
-  cell.textLabel.font =
-      [[MDFRobotoFontLoader sharedInstance] mediumFontOfSize:14];
-  cell.textLabel.textColor = [[MDCPalette greyPalette] tint900];
-
-  cell.detailTextLabel.font =
-      [[MDFRobotoFontLoader sharedInstance] regularFontOfSize:14];
-  cell.detailTextLabel.textColor = [[MDCPalette greyPalette] tint500];
+  cell.textLabel.font = self.textFont;
+  cell.textLabel.textColor = self.textColor;
+  cell.detailTextLabel.font = self.detailTextFont;
+  cell.detailTextLabel.textColor = self.detailTextColor;
 }
 
 @end