Remove all remaining traces of MessageLoopProxy.

chromecast/browser/cast_browser_main_parts.cc

 // Copyright 2014 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 "chromecast/browser/cast_browser_main_parts.h"
 
 #include <stddef.h>
 #include <string.h>
 
 #include <string>
@@ skipping 386 matching lines @@
 void CastBrowserMainParts::PreMainMessageLoopRun() {
   scoped_refptr<PrefRegistrySimple> pref_registry(new PrefRegistrySimple());
   metrics::RegisterPrefs(pref_registry.get());
   cast_browser_process_->SetPrefService(
       PrefServiceHelper::CreatePrefService(pref_registry.get()));
 
 #if !defined(OS_ANDROID)
   memory_pressure_monitor_.reset(new CastMemoryPressureMonitor());
 #endif  // defined(OS_ANDROID)
 
-  cast_browser_process_->SetConnectivityChecker(
-      ConnectivityChecker::Create(
-          content::BrowserThread::GetMessageLoopProxyForThread(
-              content::BrowserThread::IO)));
+  cast_browser_process_->SetConnectivityChecker(ConnectivityChecker::Create(
+      content::BrowserThread::GetTaskRunnerForThread(
+          content::BrowserThread::IO)));
 
   cast_browser_process_->SetNetLog(net_log_.get());
 
   url_request_context_factory_->InitializeOnUIThread(net_log_.get());
 
   cast_browser_process_->SetBrowserContext(
       base::WrapUnique(new CastBrowserContext(url_request_context_factory_)));
   cast_browser_process_->SetMetricsServiceClient(
       metrics::CastMetricsServiceClient::Create(
           content::BrowserThread::GetBlockingPool(),
@@ skipping 90 matching lines @@
 
 void CastBrowserMainParts::PostDestroyThreads() {
 #if !defined(OS_ANDROID)
   media_resource_tracker_->FinalizeAndDestroy();
   media_resource_tracker_ = nullptr;
 #endif
 }
 
 }  // namespace shell
 }  // namespace chromecast