Use constexpr TaskTraits constructor in chromeos.

chromeos/dbus/debug_daemon_client.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 "chromeos/dbus/debug_daemon_client.h"
 
 #include <fcntl.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <unistd.h>
@@ skipping 37 matching lines @@
 
 // A self-deleting object that wraps the pipe reader operations for reading the
 // big feedback logs. It will delete itself once the pipe stream has been
 // terminated. Once the data has been completely read from the pipe, it invokes
 // the GetLogsCallback |callback| passing the deserialized logs data back to
 // the requester.
 class PipeReaderWrapper : public base::SupportsWeakPtr<PipeReaderWrapper> {
  public:
   explicit PipeReaderWrapper(const DebugDaemonClient::GetLogsCallback& callback)
       : pipe_reader_(base::CreateTaskRunnerWithTraits(
-                         base::TaskTraits().MayBlock().WithShutdownBehavior(
-                             base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN)),
+                         {base::MayBlock(),
+                          base::TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN}),
                      base::Bind(&PipeReaderWrapper::OnIOComplete, AsWeakPtr())),
         callback_(callback) {}
 
   base::ScopedFD Initialize() { return pipe_reader_.StartIO(); }
 
   void OnIOComplete() {
     std::string pipe_data;
     pipe_reader_.GetData(&pipe_data);
     JSONStringValueDeserializer json_reader(pipe_data);
 
@@ skipping 705 matching lines @@
 DebugDaemonClient::EmptyStopAgentTracingCallback() {
   return base::Bind(&EmptyStopAgentTracingCallbackBody);
 }
 
 // static
 DebugDaemonClient* DebugDaemonClient::Create() {
   return new DebugDaemonClientImpl();
 }
 
 }  // namespace chromeos