Adds a flag to support "Virtual Time" to the blink scheduler

components/scheduler/child/worker_scheduler.cc

 // Copyright 2015 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 "components/scheduler/child/worker_scheduler.h"
 
 #include "base/message_loop/message_loop.h"
-#include "components/scheduler/child/scheduler_task_runner_delegate.h"
+#include "components/scheduler/child/scheduler_tqm_delegate.h"
 #include "components/scheduler/child/worker_scheduler_impl.h"
 
 namespace scheduler {
 
 WorkerScheduler::WorkerScheduler() {
 }
 
 WorkerScheduler::~WorkerScheduler() {
 }
 
 // static
 scoped_ptr<WorkerScheduler> WorkerScheduler::Create(
-    scoped_refptr<SchedulerTaskRunnerDelegate> main_task_runner) {
+    scoped_refptr<SchedulerTqmDelegate> main_task_runner) {
   return make_scoped_ptr(new WorkerSchedulerImpl(main_task_runner.Pass()));
 }
 
 }  // namespace scheduler