Automated IWYU fix for TaskRunner includes.

content/renderer/media/android/media_player_renderer_client.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 CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/single_thread_task_runner.h"
 #include "content/common/content_export.h"
 #include "media/base/android/stream_texture_wrapper.h"
 #include "media/base/media_resource.h"
 #include "media/base/renderer.h"
 #include "media/base/renderer_client.h"
 #include "media/base/video_renderer_sink.h"
 #include "media/mojo/clients/mojo_renderer.h"
 
 namespace content {
 
@@ skipping 77 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<MediaPlayerRendererClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPlayerRendererClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_PLAYER_RENDERER_CLIENT_H_