Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/chromeos/login/screens/update_screen.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/chromeos/login/screens/update_screen.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
+#include "base/location.h"
 #include "base/logging.h"
-#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/thread_restrictions.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/chromeos/login/error_screens_histogram_helper.h"
 #include "chrome/browser/chromeos/login/screen_manager.h"
 #include "chrome/browser/chromeos/login/screens/base_screen_delegate.h"
 #include "chrome/browser/chromeos/login/screens/error_screen.h"
 #include "chrome/browser/chromeos/login/screens/network_error.h"
 #include "chrome/browser/chromeos/login/screens/update_view.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
@@ skipping 241 matching lines @@
   if (network &&
       state.status == NetworkPortalDetector::CAPTIVE_PORTAL_STATUS_UNKNOWN) {
     return;
   }
 
   // Restart portal detection for the first notification about offline state.
   if ((!network ||
        state.status == NetworkPortalDetector::CAPTIVE_PORTAL_STATUS_OFFLINE) &&
       is_first_detection_notification_) {
     is_first_detection_notification_ = false;
-    base::MessageLoop::current()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
         base::Bind(
             base::IgnoreResult(&NetworkPortalDetector::StartDetectionIfIdle),
             base::Unretained(network_portal_detector::GetInstance())));
     return;
   }
   is_first_detection_notification_ = false;
 
   NetworkPortalDetector::CaptivePortalStatus status = state.status;
   if (state_ == STATE_ERROR) {
@@ skipping 314 matching lines @@
 }
 
 void UpdateScreen::OnConnectRequested() {
   if (state_ == STATE_ERROR) {
     LOG(WARNING) << "Hiding error message since AP was reselected";
     StartUpdateCheck();
   }
 }
 
 }  // namespace chromeos