Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/extensions/api/networking_config_chromeos_apitest_chromeos.cc

 // Copyright 2015 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 <string>
 
+#include "base/location.h"
 #include "base/macros.h"
-#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/net/network_portal_detector_impl.h"
 #include "chrome/browser/chromeos/net/network_portal_notification_controller.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/shill_device_client.h"
 #include "chromeos/dbus/shill_profile_client.h"
 #include "chromeos/dbus/shill_service_client.h"
 #include "components/captive_portal/captive_portal_testing_utils.h"
 #include "content/public/test/test_utils.h"
 #include "extensions/test/result_catcher.h"
 #include "net/base/net_errors.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 #include "ui/message_center/message_center.h"
 #include "ui/message_center/message_center_observer.h"
 
-using base::MessageLoop;
 using chromeos::DBusThreadManager;
 using chromeos::NetworkPortalDetector;
 using chromeos::NetworkPortalDetectorImpl;
 using chromeos::NetworkPortalNotificationController;
 using chromeos::ShillDeviceClient;
 using chromeos::ShillProfileClient;
 using chromeos::ShillServiceClient;
 using message_center::MessageCenter;
 using message_center::MessageCenterObserver;
 
@@ skipping 15 matching lines @@
 
   void WaitForNotificationToDisplay() {
     run_loop_.Run();
   }
 
   void OnNotificationDisplayed(
       const std::string& notification_id,
       const message_center::DisplaySource source) override {
     if (notification_id ==
         NetworkPortalNotificationController::kNotificationId) {
-      MessageLoop::current()->PostTask(FROM_HERE, run_loop_.QuitClosure());
+      base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
+                                                    run_loop_.QuitClosure());
     }
   }
 
  private:
   base::RunLoop run_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(TestNotificationObserver);
 };
 
 }  // namespace
@@ skipping 111 matching lines @@
 
   extensions::ResultCatcher catcher;
   EXPECT_TRUE(catcher.GetNextResult());
 
   // Simulate the captive portal vanishing.
   SimulateSuccessfulCaptivePortalAuth();
 
   ASSERT_EQ(NetworkPortalDetector::CAPTIVE_PORTAL_STATUS_ONLINE,
             GetCaptivePortalStatus(kWifi1ServiceGUID));
 }