Automated IWYU fix for TaskRunner includes.

remoting/host/audio_capturer_linux.h

 // Copyright (c) 2012 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.
 
 #ifndef REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_
 #define REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/single_thread_task_runner.h"
 #include "remoting/host/audio_capturer.h"
 #include "remoting/host/audio_silence_detector.h"
 #include "remoting/host/linux/audio_pipe_reader.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace remoting {
 
@@ skipping 24 matching lines @@
   PacketCapturedCallback callback_;
 
   AudioSilenceDetector silence_detector_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioCapturerLinux);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_AUDIO_CAPTURER_LINUX_H_