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

content/utility/in_process_utility_thread.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/utility/in_process_utility_thread.h"
 
-#include "base/location.h"
-#include "base/single_thread_task_runner.h"
-#include "base/thread_task_runner_handle.h"
 #include "content/child/child_process.h"
 #include "content/utility/utility_thread_impl.h"
 
 namespace content {
 
 // We want to ensure there's only one utility thread running at a time, as there
 // are many globals used in the utility process.
 static base::LazyInstance<base::Lock> g_one_utility_thread_lock;
 
 InProcessUtilityThread::InProcessUtilityThread(
     const InProcessChildThreadParams& params)
     : Thread("Chrome_InProcUtilityThread"), params_(params) {
 }
 
 InProcessUtilityThread::~InProcessUtilityThread() {
   // Wait till in-process utility thread finishes clean up.
   bool previous_value = base::ThreadRestrictions::SetIOAllowed(true);
   Stop();
   base::ThreadRestrictions::SetIOAllowed(previous_value);
 }
 
 void InProcessUtilityThread::Init() {
   // We need to return right away or else the main thread that started us will
   // hang.
-  base::ThreadTaskRunnerHandle::Get()->PostTask(
-      FROM_HERE, base::Bind(&InProcessUtilityThread::InitInternal,
-                            base::Unretained(this)));
+  base::MessageLoop::current()->PostTask(
+      FROM_HERE,
+      base::Bind(&InProcessUtilityThread::InitInternal,
+                 base::Unretained(this)));
 }
 
 void InProcessUtilityThread::CleanUp() {
   child_process_.reset();
 
   // See comment in RendererMainThread.
   SetThreadWasQuitProperly(true);
   g_one_utility_thread_lock.Get().Release();
 }
 
 void InProcessUtilityThread::InitInternal() {
   g_one_utility_thread_lock.Get().Acquire();
   child_process_.reset(new ChildProcess());
   child_process_->set_main_thread(new UtilityThreadImpl(params_));
 }
 
 base::Thread* CreateInProcessUtilityThread(
     const InProcessChildThreadParams& params) {
   return new InProcessUtilityThread(params);
 }
 
 }  // namespace content