Automated IWYU fix for TaskRunner includes.

third_party/WebKit/Source/platform/scheduler/child/single_thread_idle_task_runner.cc

 // Copyright 2014 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 "public/platform/scheduler/child/single_thread_idle_task_runner.h"
 
 #include "base/location.h"
+#include "base/single_thread_task_runner.h"
 #include "base/trace_event/blame_context.h"
 #include "base/trace_event/trace_event.h"
 
 namespace blink {
 namespace scheduler {
 
 SingleThreadIdleTaskRunner::SingleThreadIdleTaskRunner(
     scoped_refptr<base::SingleThreadTaskRunner> idle_priority_task_runner,
     Delegate* delegate)
     : idle_priority_task_runner_(idle_priority_task_runner),
@@ skipping 71 matching lines @@
   delegate_->DidProcessIdleTask();
 }
 
 void SingleThreadIdleTaskRunner::SetBlameContext(
     base::trace_event::BlameContext* blame_context) {
   blame_context_ = blame_context;
 }
 
 }  // namespace scheduler
 }  // namespace blink