Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/android/download/download_manager_service.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 "chrome/browser/android/download/download_manager_service.h"
 
 #include "base/android/jni_string.h"
-#include "base/message_loop/message_loop.h"
+#include "base/location.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/grit/generated_resources.h"
 #include "content/public/browser/android/download_controller_android.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/download_item.h"
 #include "jni/DownloadManagerService_jni.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 162 matching lines @@
       iter->second = action;
       break;
     default:
       NOTREACHED();
       break;
   }
 }
 
 void DownloadManagerService::OnResumptionFailed(
     const std::string& download_guid) {
-  base::MessageLoop::current()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&DownloadManagerService::OnResumptionFailedInternal,
                             base::Unretained(this), download_guid));
 }
 
 void DownloadManagerService::OnResumptionFailedInternal(
     const std::string& download_guid) {
   if (!java_ref_.is_null()) {
     JNIEnv* env = base::android::AttachCurrentThread();
     Java_DownloadManagerService_onResumptionFailed(
         env, java_ref_.obj(),
         ConvertUTF8ToJavaString(env, download_guid).obj());
   }
   if (!resume_callback_for_testing_.is_null())
     resume_callback_for_testing_.Run(false);
 }
 
 content::DownloadManager* DownloadManagerService::GetDownloadManager(
     bool is_off_the_record) {
   Profile* profile = ProfileManager::GetActiveUserProfile();
   if (is_off_the_record)
     profile = profile->GetOffTheRecordProfile();
   return content::BrowserContext::GetDownloadManager(profile);
 }