Use MDCTypography instead of MDFRobotoFontLoader directly.

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

Index: ios/chrome/browser/ui/ntp/whats_new_header_view.mm
diff --git a/ios/chrome/browser/ui/ntp/whats_new_header_view.mm b/ios/chrome/browser/ui/ntp/whats_new_header_view.mm
index 96301ef41bb02aca30bb565aef07ebdd9f0921a5..ae4a2d4d597c5e74fded87a43df1cb80cfbc89e3 100644
--- a/ios/chrome/browser/ui/ntp/whats_new_header_view.mm
+++ b/ios/chrome/browser/ui/ntp/whats_new_header_view.mm
@@ -10,7 +10,7 @@
 #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 {
 
@@ -18,7 +18,6 @@ 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;
 
@@ -183,8 +182,7 @@ const int kLinkColorRgb = 0x5595FE;
 + (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];