Use TaskScheduler instead of blocking pool in chrome_browser_main_chromeos.cc.

chrome/browser/chromeos/chrome_browser_main_chromeos.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/chromeos/chrome_browser_main_chromeos.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "ash/shell.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/linux_util.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/sys_info.h"
-#include "base/task_runner_util.h"
+#include "base/task_scheduler/post_task.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_process_platform_part_chromeos.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
 #include "chrome/browser/chromeos/accessibility/magnification_manager.h"
 #include "chrome/browser/chromeos/accessibility/spoken_feedback_event_rewriter.h"
 #include "chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_manager.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_launch_error.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_mode_idle_app_name_notification.h"
@@ skipping 481 matching lines @@
   wallpaper::WallpaperManagerBase::SetPathIds(
       chrome::DIR_USER_DATA,
       chrome::DIR_CHROMEOS_WALLPAPERS,
       chrome::DIR_CHROMEOS_CUSTOM_WALLPAPERS);
 
   // Add observers for WallpaperManager. This depends on PowerManagerClient,
   // TimezoneSettings and CrosSettings.
   WallpaperManager::Initialize();
   WallpaperManager::Get()->AddObservers();
 
-  base::PostTaskAndReplyWithResult(
-      content::BrowserThread::GetBlockingPool(),
-      FROM_HERE,
-      base::Bind(&version_loader::GetVersion,
-                 version_loader::VERSION_FULL),
+  base::PostTaskWithTraitsAndReplyWithResult(
+      FROM_HERE, base::TaskTraits().MayBlock().WithPriority(
+                     base::TaskPriority::BACKGROUND),
+      base::Bind(&version_loader::GetVersion, version_loader::VERSION_FULL),
       base::Bind(&ChromeOSVersionCallback));
 
   // Make sure that wallpaper boot transition and other delays in OOBE
   // are disabled for tests and kiosk app launch by default.
   // Individual tests may enable them if they want.
   if (parsed_command_line().HasSwitch(::switches::kTestType) ||
       ShouldAutoLaunchKioskApp(parsed_command_line())) {
     WizardController::SetZeroDelays();
   }
 
@@ skipping 398 matching lines @@
 
   ChromeBrowserMainPartsLinux::PostDestroyThreads();
 
   // Destroy DeviceSettingsService after g_browser_process.
   DeviceSettingsService::Shutdown();
 
   chromeos::ShutdownCloseTracking();
 }
 
 }  //  namespace chromeos