Use constexpr TaskTraits constructor in chrome.

chrome/browser/component_updater/chrome_component_updater_configurator.cc

 // Copyright 2014 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/component_updater/chrome_component_updater_configurator.h"
 
 #include <string>
 #include <vector>
 
 #include "base/strings/sys_string_conversions.h"
@@ skipping 167 matching lines @@
   return configurator_impl_.EnabledCupSigning();
 }
 
 // Returns a task runner to run blocking tasks. The task runner continues to run
 // after the browser shuts down, until the OS terminates the process. This
 // imposes certain requirements for the code using the task runner, such as
 // not accessing any global browser state while the code is running.
 scoped_refptr<base::SequencedTaskRunner>
 ChromeConfigurator::GetSequencedTaskRunner() const {
   return base::CreateSequencedTaskRunnerWithTraits(
-      base::TaskTraits()
-          .MayBlock()
-          .WithPriority(base::TaskPriority::BACKGROUND)
-          .WithShutdownBehavior(
-              base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN));
+      {base::MayBlock(), base::TaskPriority::BACKGROUND,
+       base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN});
 }
 
 PrefService* ChromeConfigurator::GetPrefService() const {
   DCHECK(pref_service_);
   return pref_service_;
 }
 
 bool ChromeConfigurator::IsPerUserInstall() const {
   return component_updater::IsPerUserInstall();
 }
 
 }  // namespace
 
 void RegisterPrefsForChromeComponentUpdaterConfigurator(
     PrefRegistrySimple* registry) {
   // The component updates are enabled by default, if the preference is not set.
   registry->RegisterBooleanPref(prefs::kComponentUpdatesEnabled, true);
 }
 
 scoped_refptr<update_client::Configurator>
 MakeChromeComponentUpdaterConfigurator(
     const base::CommandLine* cmdline,
     net::URLRequestContextGetter* context_getter,
     PrefService* pref_service) {
   return new ChromeConfigurator(cmdline, context_getter, pref_service);
 }
 
 }  // namespace component_updater