Remove all remaining traces of MessageLoopProxy.

chrome/browser/net/chrome_url_request_context_getter.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 "chrome/browser/net/chrome_url_request_context_getter.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 188 matching lines @@
 void ChromeURLRequestContextGetter::NotifyContextShuttingDown() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   factory_.reset();
   url_request_context_ = nullptr;
   URLRequestContextGetter::NotifyContextShuttingDown();
 }
 
 scoped_refptr<base::SingleThreadTaskRunner>
 ChromeURLRequestContextGetter::GetNetworkTaskRunner() const {
-  return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
+  return BrowserThread::GetTaskRunnerForThread(BrowserThread::IO);
 }
 
 // static
 ChromeURLRequestContextGetter* ChromeURLRequestContextGetter::Create(
     Profile* profile,
     const ProfileIOData* profile_io_data,
     content::ProtocolHandlerMap* protocol_handlers,
     content::URLRequestInterceptorScopedVector request_interceptors) {
   return new ChromeURLRequestContextGetter(new FactoryForMain(
       profile_io_data, protocol_handlers, std::move(request_interceptors)));
@@ skipping 37 matching lines @@
 ChromeURLRequestContextGetter*
 ChromeURLRequestContextGetter::CreateForIsolatedMedia(
     Profile* profile,
     ChromeURLRequestContextGetter* app_context,
     const ProfileIOData* profile_io_data,
     const StoragePartitionDescriptor& partition_descriptor) {
   return new ChromeURLRequestContextGetter(
       new FactoryForIsolatedMedia(
           profile_io_data, partition_descriptor, app_context));
 }