Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

content/shell/browser/shell_url_request_context_getter.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 "content/shell/browser/shell_url_request_context_getter.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
-#include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/threading/worker_pool.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/cookie_store_factory.h"
 #include "content/public/common/content_switches.h"
 #include "content/shell/browser/shell_network_delegate.h"
 #include "content/shell/common/shell_content_client.h"
@@ skipping 67 matching lines @@
 
 ShellURLRequestContextGetter::~ShellURLRequestContextGetter() {
 }
 
 net::NetworkDelegate* ShellURLRequestContextGetter::CreateNetworkDelegate() {
   return new ShellNetworkDelegate;
 }
 
 net::ProxyConfigService* ShellURLRequestContextGetter::GetProxyConfigService() {
   return net::ProxyService::CreateSystemProxyConfigService(
-      io_loop_->task_runner(), file_loop_->task_runner());
+      io_loop_->message_loop_proxy(), file_loop_->message_loop_proxy());
 }
 
 net::ProxyService* ShellURLRequestContextGetter::GetProxyService() {
   // TODO(jam): use v8 if possible, look at chrome code.
   return net::ProxyService::CreateUsingSystemProxyResolver(
       proxy_config_service_.release(), 0, url_request_context_->net_log());
 }
 
 net::URLRequestContext* ShellURLRequestContextGetter::GetURLRequestContext() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
@@ skipping 133 matching lines @@
 scoped_refptr<base::SingleThreadTaskRunner>
     ShellURLRequestContextGetter::GetNetworkTaskRunner() const {
   return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
 }
 
 net::HostResolver* ShellURLRequestContextGetter::host_resolver() {
   return url_request_context_->host_resolver();
 }
 
 }  // namespace content