Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/chromeos/settings/device_oauth2_token_service.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/settings/device_oauth2_token_service.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
+#include "base/location.h"
 #include "base/memory/weak_ptr.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/time/time.h"
 #include "chrome/common/pref_names.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "google_apis/gaia/google_service_auth_error.h"
 
 namespace chromeos {
 
 struct DeviceOAuth2TokenService::PendingRequest {
   PendingRequest(const base::WeakPtr<RequestImpl>& request,
                  const std::string& client_id,
@@ skipping 102 matching lines @@
     } else {
       FailRequest(scoped_request->request.get(), error);
     }
   }
 }
 
 void DeviceOAuth2TokenService::FailRequest(
     RequestImpl* request,
     GoogleServiceAuthError::State error) {
   GoogleServiceAuthError auth_error(error);
-  base::MessageLoop::current()->PostTask(FROM_HERE, base::Bind(
-      &RequestImpl::InformConsumer,
-      request->AsWeakPtr(),
-      auth_error,
-      std::string(),
-      base::Time()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&RequestImpl::InformConsumer, request->AsWeakPtr(),
+                            auth_error, std::string(), base::Time()));
 }
 
 }  // namespace chromeos