Revert of Remove MessageLoop::current() from base::win::ObjectWatcher.

base/process/kill_win.cc

 // Copyright (c) 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 "base/process/kill.h"
 
 #include <windows.h>
 #include <io.h>
 #include <stdint.h>
 
-#include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/process/process_iterator.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/win/object_watcher.h"
 
@@ skipping 172 matching lines @@
     return;
   }
 
   ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, Bind(&TimerExpiredTask::TimedOut,
                       Owned(new TimerExpiredTask(std::move(process)))),
       TimeDelta::FromMilliseconds(kWaitInterval));
 }
 
 }  // namespace base