Use MDCTypography instead of MDFRobotoFontLoader directly.

ios/chrome/browser/ui/tab_switcher/tab_switcher_panel_cell.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/tab_switcher/tab_switcher_panel_cell.h"
 
 #import "ios/chrome/browser/tabs/tab.h"
 #import "ios/chrome/browser/ui/fade_truncated_label.h"
 #import "ios/chrome/browser/ui/image_util.h"
 #import "ios/chrome/browser/ui/tab_switcher/tab_switcher_button.h"
 #import "ios/chrome/browser/ui/tab_switcher/tab_switcher_cache.h"
 #import "ios/chrome/browser/ui/tab_switcher/tab_switcher_utils.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
 #include "ios/chrome/grit/ios_strings.h"
 #include "ios/chrome/grit/ios_theme_resources.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"
+#import "ios/third_party/material_components_ios/src/components/Typography/src/MaterialTypography.h"
 #import "ios/third_party/material_text_accessibility_ios/src/src/MDFTextAccessibility.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/image/image.h"
 #include "url/gurl.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace gfx {
 class ImageSkia;
 }
 
 namespace {
-const CGFloat kFontSize = 16;
 const CGFloat kCellCornerRadius = 2;
 const CGFloat kBarHeight = 44;
 const CGFloat kTitleLabelTextAlpha = .54;
 const CGFloat kNewTabIconAlpha = .87;
 }
 
 CGFloat tabSwitcherLocalSessionCellTopBarHeight() {
   return kBarHeight;
 }
 
@@ skipping 117 matching lines @@
     ];
     NSDictionary* metrics =
         @{ @"barHeight" : @(tabSwitcherLocalSessionCellTopBarHeight()) };
     ApplyVisualConstraintsWithMetrics(constraints, viewsDictionary, metrics,
                                       [self containerView]);
 
     // Create and add subviews to the cell bar.
     // Title label.
     _titleLabel = [[UILabel alloc] initWithFrame:CGRectZero];
     [_titleLabel setTranslatesAutoresizingMaskIntoConstraints:NO];
-    [_titleLabel setFont:[[MDFRobotoFontLoader sharedInstance]
-                             regularFontOfSize:kFontSize]];
+    [_titleLabel setFont:[MDCTypography subheadFont]];
     [_topBar addSubview:_titleLabel];
 
     // Favicon.
     _favicon = [[UIImageView alloc] initWithFrame:CGRectZero];
     [_favicon setTranslatesAutoresizingMaskIntoConstraints:NO];
     [_topBar addSubview:_favicon];
 
     // Close button.
     _closeButton = [[UIButton alloc] initWithFrame:CGRectZero];
     [_closeButton
@@ skipping 165 matching lines @@
     _verticallyCenteredView = [[UIView alloc] initWithFrame:CGRectZero];
     [_verticallyCenteredView setTranslatesAutoresizingMaskIntoConstraints:NO];
     [_verticallyCenteredView setUserInteractionEnabled:NO];
     [_raisedButton addSubview:_verticallyCenteredView];
 
     // Create and add title label to |_verticallyCenteredContent|.
     _titleLabel = [[UILabel alloc] initWithFrame:CGRectZero];
     [_titleLabel setTranslatesAutoresizingMaskIntoConstraints:NO];
     [_titleLabel setNumberOfLines:5];
     [_titleLabel setTextAlignment:NSTextAlignmentCenter];
-    [_titleLabel setFont:[[MDFRobotoFontLoader sharedInstance]
-                             regularFontOfSize:kFontSize]];
+    [_titleLabel setFont:[MDCTypography subheadFont]];
     [_verticallyCenteredView addSubview:_titleLabel];
 
     // Create and add new tab icon to |_verticallyCenteredContent|.
     UIImage* newTabIcon = [[UIImage imageNamed:@"tabswitcher_new_tab"]
         imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
     _newTabIcon = [[UIImageView alloc] initWithImage:newTabIcon];
     [_newTabIcon setAlpha:0];
     [_newTabIcon setTranslatesAutoresizingMaskIntoConstraints:NO];
     [_verticallyCenteredView addSubview:_newTabIcon];
 
@@ skipping 83 matching lines @@
 - (void)prepareForReuse {
   [_newTabIcon setAlpha:0];
   [_faviconObtainer cancel];
   _faviconObtainer = nil;
   [_raisedButton setAlpha:0];
   [_raisedButton resetState];
   [super prepareForReuse];
 }
 
 @end