Use constexpr TaskTraits constructor in net.

net/ssl/channel_id_service.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 "net/ssl/channel_id_service.h"
 
 #include <algorithm>
 #include <limits>
 #include <memory>
 #include <utility>
@@ skipping 102 matching lines @@
   // Starts the worker asynchronously.
   void Start(const scoped_refptr<base::TaskRunner>& task_runner) {
     DCHECK(origin_task_runner_->RunsTasksOnCurrentThread());
 
     auto callback = base::Bind(&ChannelIDServiceWorker::Run, base::Owned(this));
 
     if (task_runner) {
       task_runner->PostTask(FROM_HERE, callback);
     } else {
       base::PostTaskWithTraits(
-          FROM_HERE, base::TaskTraits()
-                         .WithShutdownBehavior(
-                             base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN)
-                         .MayBlock(),
+          FROM_HERE,
+          {base::MayBlock(), base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN},
           callback);
     }
   }
 
  private:
   void Run() {
     // Runs on a worker thread.
     int error = ERR_FAILED;
     std::unique_ptr<ChannelIDStore::ChannelID> channel_id =
         GenerateChannelID(server_identifier_, &error);
@@ skipping 340 matching lines @@
   }
 
   return err;
 }
 
 int ChannelIDService::channel_id_count() {
   return channel_id_store_->GetChannelIDCount();
 }
 
 }  // namespace net