Automated IWYU fix for TaskRunner includes.

media/midi/midi_manager_win.cc

 // Copyright 2017 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 "media/midi/midi_manager_win.h"
 
 #include <windows.h>
 
 #include <ks.h>
 #include <ksmedia.h>
 #include <mmreg.h>
 #include <mmsystem.h>
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string16.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/synchronization/lock.h"
 #include "base/win/windows_version.h"
 #include "device/usb/usb_ids.h"
 #include "media/midi/message_util.h"
 #include "media/midi/midi_manager_winrt.h"
 #include "media/midi/midi_port_info.h"
 #include "media/midi/midi_service.h"
@@ skipping 802 matching lines @@
 
 MidiManager* MidiManager::Create(MidiService* service) {
   if (base::FeatureList::IsEnabled(features::kMidiManagerWinrt) &&
       base::win::GetVersion() >= base::win::VERSION_WIN10) {
     return new MidiManagerWinrt(service);
   }
   return new MidiManagerWin(service);
 }
 
 }  // namespace midi