Automated IWYU fix for TaskRunner includes.

media/gpu/avda_codec_allocator.cc

 // 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.
 
 #include "media/gpu/avda_codec_allocator.h"
 
 #include <stddef.h>
 
 #include <memory>
 
 #include "base/logging.h"
+#include "base/single_thread_task_runner.h"
 #include "base/sys_info.h"
 #include "base/task_runner_util.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_checker.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/default_tick_clock.h"
 #include "base/trace_event/trace_event.h"
 #include "media/base/android/media_codec_bridge_impl.h"
 #include "media/base/limits.h"
 #include "media/base/media.h"
@@ skipping 319 matching lines @@
 void AVDACodecAllocator::StopThreadTask(size_t index) {
   threads_[index]->thread.Stop();
   // Signal the stop event after both threads are stopped.
   if (stop_event_for_testing_ && !threads_[AUTO_CODEC]->thread.IsRunning() &&
       !threads_[SW_CODEC]->thread.IsRunning()) {
     stop_event_for_testing_->Signal();
   }
 }
 
 }  // namespace media