Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.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/webui/chromeos/login/signin_screen_handler.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <vector>
 
 #include "ash/shell.h"
 #include "ash/system/chromeos/devicetype_utils.h"
 #include "ash/wm/lock_state_controller.h"
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/metrics/histogram.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/sys_info.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_process_platform_part_chromeos.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
 #include "chrome/browser/chromeos/login/error_screens_histogram_helper.h"
 #include "chrome/browser/chromeos/login/hwid_checker.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
@@ skipping 614 matching lines @@
 
   update_state_closure_.Cancel();
 
   if ((state == NetworkStateInformer::OFFLINE && !force_update) ||
       has_pending_auth_ui_) {
     update_state_closure_.Reset(
         base::Bind(&SigninScreenHandler::UpdateStateInternal,
                    weak_factory_.GetWeakPtr(),
                    reason,
                    true));
-    base::MessageLoop::current()->PostDelayedTask(
-        FROM_HERE,
-        update_state_closure_.callback(),
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+        FROM_HERE, update_state_closure_.callback(),
         base::TimeDelta::FromSeconds(
             zero_offline_timeout_for_test_ ? 0 : kOfflineTimeoutSec));
     return;
   }
 
   // Don't show or hide error screen if we're in connecting state.
   if (state == NetworkStateInformer::CONNECTING && !force_update) {
     if (connecting_closure_.IsCancelled()) {
       // First notification about CONNECTING state.
       connecting_closure_.Reset(
           base::Bind(&SigninScreenHandler::UpdateStateInternal,
                      weak_factory_.GetWeakPtr(),
                      reason,
                      true));
-      base::MessageLoop::current()->PostDelayedTask(
-          FROM_HERE,
-          connecting_closure_.callback(),
+      base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+          FROM_HERE, connecting_closure_.callback(),
           base::TimeDelta::FromSeconds(kConnectingTimeoutSec));
     }
     return;
   }
   connecting_closure_.Cancel();
 
   const bool is_online = IsOnline(state, reason);
   const bool is_behind_captive_portal = IsBehindCaptivePortal(state, reason);
   const bool is_gaia_loading_timeout =
       (reason == NetworkError::ERROR_REASON_LOADING_TIMEOUT);
@@ skipping 745 matching lines @@
 }
 
 void SigninScreenHandler::OnFeedbackFinished() {
   CallJS("login.UnrecoverableCryptohomeErrorScreen.resumeAfterFeedbackUI");
 
   // Recreate user's cryptohome after the feedkback is attempted.
   HandleResyncUserData();
 }
 
 }  // namespace chromeos