Use constexpr TaskTraits constructor in chrome.

chrome/browser/ui/views/outdated_upgrade_bubble_view.cc

 // Copyright (c) 2013 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/ui/views/outdated_upgrade_bubble_view.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/user_metrics.h"
 #include "base/task_scheduler/post_task.h"
 #include "build/build_config.h"
@@ skipping 118 matching lines @@
         base::UserMetricsAction("OutdatedUpgradeBubble.EnableAU"));
     // Record that the autoupdate flavour of the dialog has been shown.
     if (g_browser_process->local_state()) {
       g_browser_process->local_state()->SetBoolean(
           prefs::kAttemptedToEnableAutoupdate, true);
     }
 
     // Re-enable updates by shelling out to setup.exe asynchronously.
     base::PostTaskWithTraits(
         FROM_HERE,
-        base::TaskTraits()
-            .MayBlock()
-            .WithPriority(base::TaskPriority::BACKGROUND)
-            .WithShutdownBehavior(base::TaskShutdownBehavior::BLOCK_SHUTDOWN),
+        {base::MayBlock(), base::TaskPriority::BACKGROUND,
+         base::TaskShutdownBehavior::BLOCK_SHUTDOWN},
         base::Bind(&google_update::ElevateIfNeededToReenableUpdates));
 #endif  // defined(OS_WIN)
   }
 
   return true;
 }
 
 void OutdatedUpgradeBubbleView::UpdateButton(views::LabelButton* button,
                                              ui::DialogButton type) {
   BubbleDialogDelegateView::UpdateButton(button, type);
@@ skipping 28 matching lines @@
     content::PageNavigator* navigator,
     bool auto_update_enabled)
     : BubbleDialogDelegateView(anchor_view, views::BubbleBorder::TOP_RIGHT),
       auto_update_enabled_(auto_update_enabled),
       navigator_(navigator) {
   // Compensate for built-in vertical padding in the anchor view's image.
   set_anchor_view_insets(gfx::Insets(
       GetLayoutConstant(LOCATION_BAR_BUBBLE_ANCHOR_VERTICAL_INSET), 0));
   chrome::RecordDialogCreation(chrome::DialogIdentifier::OUTDATED_UPGRADE);
 }