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

components/scheduler/ppapi/webthread_impl_for_ppapi.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/ppapi/webthread_impl_for_ppapi.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
+#include "base/time/default_tick_clock.h"
 #include "components/scheduler/base/task_queue.h"
-#include "components/scheduler/child/scheduler_task_runner_delegate_impl.h"
+#include "components/scheduler/child/scheduler_tqm_delegate_impl.h"
 #include "components/scheduler/child/web_scheduler_impl.h"
 #include "components/scheduler/child/web_task_runner_impl.h"
 #include "components/scheduler/child/worker_scheduler_impl.h"
 
 namespace scheduler {
 
 WebThreadImplForPPAPI::WebThreadImplForPPAPI()
     : thread_id_(base::PlatformThread::CurrentId()),
-      task_runner_delegate_(SchedulerTaskRunnerDelegateImpl::Create(
-          base::MessageLoop::current())),
+      task_runner_delegate_(SchedulerTqmDelegateImpl::Create(
+          base::MessageLoop::current(),
+          make_scoped_ptr(new base::DefaultTickClock()))),
       worker_scheduler_(WorkerScheduler::Create(task_runner_delegate_)) {
   worker_scheduler_->Init();
   task_runner_ = worker_scheduler_->DefaultTaskRunner();
   idle_task_runner_ = worker_scheduler_->IdleTaskRunner();
   web_scheduler_.reset(new WebSchedulerImpl(
       worker_scheduler_.get(), worker_scheduler_->IdleTaskRunner(),
       worker_scheduler_->DefaultTaskRunner(),
       worker_scheduler_->DefaultTaskRunner()));
   web_task_runner_ = make_scoped_ptr(new WebTaskRunnerImpl(task_runner_));
 }
@@ skipping 24 matching lines @@
     base::MessageLoop::TaskObserver* observer) {
   worker_scheduler_->AddTaskObserver(observer);
 }
 
 void WebThreadImplForPPAPI::RemoveTaskObserverInternal(
     base::MessageLoop::TaskObserver* observer) {
   worker_scheduler_->RemoveTaskObserver(observer);
 }
 
 }  // namespace scheduler