Automated IWYU fix for TaskRunner includes.

media/remoting/courier_renderer.h

 // Copyright 2016 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 MEDIA_REMOTING_COURIER_RENDERER_H_
 #define MEDIA_REMOTING_COURIER_RENDERER_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/optional.h"
+#include "base/single_thread_task_runner.h"
 #include "base/synchronization/lock.h"
 #include "base/timer/timer.h"
 #include "media/base/pipeline_status.h"
 #include "media/base/renderer.h"
 #include "media/mojo/interfaces/remoting.mojom.h"
 #include "media/remoting/metrics.h"
 #include "media/remoting/rpc_broker.h"
 #include "mojo/public/cpp/system/data_pipe.h"
 
 namespace media {
@@ skipping 181 matching lines @@
 
   base::WeakPtrFactory<CourierRenderer> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CourierRenderer);
 };
 
 }  // namespace remoting
 }  // namespace media
 
 #endif  // MEDIA_REMOTING_COURIER_RENDERER_H_