Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/chromeos/first_run/first_run_controller.cc

 // Copyright 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/first_run/first_run_controller.h"
 
 #include "ash/shell.h"
+#include "base/location.h"
 #include "base/logging.h"
-#include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/chromeos/first_run/first_run_view.h"
 #include "chrome/browser/chromeos/first_run/metrics.h"
 #include "chrome/browser/chromeos/first_run/steps/app_list_step.h"
 #include "chrome/browser/chromeos/first_run/steps/help_step.h"
 #include "chrome/browser/chromeos/first_run/steps/tray_step.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/ui/chrome_pages.h"
 #include "components/user_manager/user_manager.h"
 #include "ui/views/widget/widget.h"
 
@@ skipping 27 matching lines @@
   g_instance->Init();
 }
 
 // static
 void FirstRunController::Stop() {
   if (!g_instance) {
     LOG(WARNING) << "First-run tutorial is not running.";
     return;
   }
   g_instance->Finalize();
-  base::MessageLoop::current()->DeleteSoon(FROM_HERE, g_instance);
+  base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, g_instance);
   g_instance = NULL;
 }
 
 FirstRunController* FirstRunController::GetInstanceForTest() {
   return g_instance;
 }
 
 FirstRunController::FirstRunController()
     : actor_(NULL),
       current_step_index_(NONE_STEP_INDEX),
@@ skipping 116 matching lines @@
     current_step_index_ = NONE_STEP_INDEX;
 }
 
 first_run::Step* FirstRunController::GetCurrentStep() const {
   return current_step_index_ != NONE_STEP_INDEX ?
       steps_[current_step_index_].get() : NULL;
 }
 
 }  // namespace chromeos