Use MDCTypography instead of MDFRobotoFontLoader directly.

ios/chrome/browser/ui/ntp/whats_new_header_view.mm

 // Copyright 2015 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/ntp/whats_new_header_view.h"
 
 #include "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
 #include "ios/chrome/common/string_util.h"
 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
 #include "ios/public/provider/chrome/browser/images/branded_image_provider.h"
-#import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
+#import "ios/third_party/material_components_ios/src/components/Typography/src/MaterialTypography.h"
 
 namespace {
 
 const CGFloat kLabelTopMargin = 16;
 const CGFloat kLabelBottomMargin = 24;
 const CGFloat kLabelLineSpacing = 4;
 const CGFloat kLabelLeftMargin = 8;
-const CGFloat kLabelFontSize = 14;
 const CGFloat kInfoIconSize = 24;
 const CGFloat kInfoIconTopMargin = 12;
 
 const int kTextColorRgb = 0x333333;
 const int kLinkColorRgb = 0x5595FE;
 
 }  // namespace
 
 @interface WhatsNewHeaderView () {
   base::scoped_nsobject<UIImageView> _infoIconImageView;
@@ skipping 144 matching lines @@
   [attributedText addAttribute:NSParagraphStyleAttributeName
                          value:style
                          range:NSMakeRange(0, strLength)];
 
   [promoLabel setAttributedText:attributedText];
 }
 
 + (UILabel*)promoLabel {
   base::scoped_nsobject<UILabel> promoLabel(
       [[UILabel alloc] initWithFrame:CGRectZero]);
-  [promoLabel setFont:[[MDFRobotoFontLoader sharedInstance]
-                          regularFontOfSize:kLabelFontSize]];
+  [promoLabel setFont:[MDCTypography body1Font]];
   [promoLabel setTextColor:UIColorFromRGB(kTextColorRgb, 1.0)];
   [promoLabel setNumberOfLines:0];
   [promoLabel setTextAlignment:NSTextAlignmentNatural];
   [promoLabel setLineBreakMode:NSLineBreakByWordWrapping];
   return promoLabel.autorelease();
 }
 
 + (int)heightToFitText:(NSString*)text inWidth:(CGFloat)width {
   CGFloat maxWidthForLabel = width - kInfoIconSize - kLabelLeftMargin;
   base::scoped_nsobject<UILabel> promoLabel([[self promoLabel] retain]);
   [[self class] setText:text inPromoLabel:promoLabel.get()];
   CGFloat promoLabelHeight =
       [promoLabel sizeThatFits:CGSizeMake(maxWidthForLabel, CGFLOAT_MAX)]
           .height;
   return promoLabelHeight + kLabelTopMargin + kLabelBottomMargin;
 }
 
 @end