Use constexpr TaskTraits constructor everywhere.

chrome/browser/printing/print_job.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/printing/print_job.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 432 matching lines @@
     return;
   }
 #endif
 
   // Now make sure the thread object is cleaned up. Do this on a worker
   // thread because it may block.
   // TODO(fdoray): Remove MayBlock() once base::Thread::Stop() passes
   // base::ThreadRestrictions::AssertWaitAllowed().
   base::PostTaskWithTraitsAndReply(
       FROM_HERE,
-      base::TaskTraits()
-          .MayBlock()
-          .WithBaseSyncPrimitives()
-          .WithPriority(base::TaskPriority::BACKGROUND)
-          .WithShutdownBehavior(
-              base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN),
+      {base::MayBlock(), base::WithBaseSyncPrimitives(),
+       base::TaskPriority::BACKGROUND,
+       base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN},
       base::BindOnce(&PrintJobWorker::Stop, base::Unretained(worker_.get())),
       base::BindOnce(&PrintJob::HoldUntilStopIsCalled, this));
 
   is_job_pending_ = false;
   registrar_.RemoveAll();
   UpdatePrintedDocument(nullptr);
 }
 
 void PrintJob::HoldUntilStopIsCalled() {
 }
@@ skipping 10 matching lines @@
     : document_(document), page_(page), type_(type), job_id_(job_id) {}
 
 JobEventDetails::~JobEventDetails() {
 }
 
 PrintedDocument* JobEventDetails::document() const { return document_.get(); }
 
 PrintedPage* JobEventDetails::page() const { return page_.get(); }
 
 }  // namespace printing