Use constexpr TaskTraits constructor in content.

content/browser/plugin_service_impl.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 "content/browser/plugin_service_impl.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 80 matching lines @@
     UMA_HISTOGRAM_ENUMERATION("Plugin.FlashUsage", TOTAL_BROWSER_PROCESSES,
                               FLASH_USAGE_ENUM_COUNT);
   }
 }
 
 PluginServiceImpl::~PluginServiceImpl() {
 }
 
 void PluginServiceImpl::Init() {
   plugin_list_task_runner_ = base::CreateSequencedTaskRunnerWithTraits(
-      base::TaskTraits()
-          .MayBlock()
-          .WithPriority(base::TaskPriority::USER_VISIBLE)
-          .WithShutdownBehavior(base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN));
+      {base::MayBlock(), base::TaskPriority::USER_VISIBLE,
+       base::TaskShutdownBehavior::SKIP_ON_SHUTDOWN});
   PluginList::Singleton()->set_will_load_plugins_callback(
       base::Bind(&WillLoadPluginsCallback, &plugin_list_sequence_checker_));
 
   RegisterPepperPlugins();
 }
 
 PpapiPluginProcessHost* PluginServiceImpl::FindPpapiPluginProcess(
     const base::FilePath& plugin_path,
     const base::FilePath& profile_data_directory) {
   for (PpapiPluginProcessHostIterator iter; !iter.Done(); ++iter) {
@@ skipping 300 matching lines @@
 }
 
 bool PluginServiceImpl::PpapiDevChannelSupported(
     BrowserContext* browser_context,
     const GURL& document_url) {
   return GetContentClient()->browser()->IsPluginAllowedToUseDevChannelAPIs(
       browser_context, document_url);
 }
 
 }  // namespace content