Automated IWYU fix for TaskRunner includes.

media/audio/audio_input_controller_unittest.cc

 // 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.
 
 #include "media/audio/audio_input_controller.h"
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/thread.h"
 #include "media/audio/audio_device_description.h"
 #include "media/audio/audio_thread_impl.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AnyNumber;
@@ skipping 195 matching lines @@
   controller->Record();
 
   controller->Close(base::MessageLoop::QuitWhenIdleClosure());
   base::RunLoop().Run();
 
   controller->Close(base::MessageLoop::QuitWhenIdleClosure());
   base::RunLoop().Run();
 }
 
 }  // namespace media