Fix gn_all build on gcc 4.8

chrome/browser/ui/views/first_run_bubble.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/views/first_run_bubble.h"
 
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/chrome_pages.h"
@@ skipping 32 matching lines @@
       rb.GetFontList(ui::ResourceBundle::MediumFont);
 
   const base::string16 search_engine_name = browser_ ?
       GetDefaultSearchEngineName(
           TemplateURLServiceFactory::GetForProfile(browser_->profile())) :
       base::string16();
 
   // TODO(tapted): Update these when there are mocks. http://crbug.com/699338.
   views::Label* title = new views::Label(
       l10n_util::GetStringFUTF16(IDS_FR_BUBBLE_TITLE, search_engine_name),
-      {original_font_list.Derive(2, gfx::Font::NORMAL,
-                                 gfx::Font::Weight::BOLD)});
+      views::Label::CustomFont{original_font_list.Derive(
+          2, gfx::Font::NORMAL, gfx::Font::Weight::BOLD)});
 
   views::Link* change =
       new views::Link(l10n_util::GetStringUTF16(IDS_FR_BUBBLE_CHANGE));
   change->SetFontList(original_font_list);
   change->set_listener(this);
 
   views::Label* subtext = new views::Label(
       l10n_util::GetStringUTF16(IDS_FR_BUBBLE_SUBTEXT), {original_font_list});
 
   views::GridLayout* layout = views::GridLayout::CreatePanel(this);
@@ skipping 71 matching lines @@
 
 void FirstRunBubble::FirstRunBubbleCloser::CloseBubble() {
   if (!event_monitor_)
     return;
 
   event_monitor_.reset();
   DCHECK(bubble_);
   bubble_->GetWidget()->Close();
   bubble_ = nullptr;
 }