Use WTF::TimeDelta to specify delays on WebTaskRunner

third_party/WebKit/Source/platform/scheduler/child/webthread_impl_for_worker_scheduler_unittest.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 "platform/scheduler/child/webthread_impl_for_worker_scheduler.h"
 
 #include "base/macros.h"
 #include "base/synchronization/waitable_event.h"
 #include "platform/WebTaskRunner.h"
 #include "platform/scheduler/child/web_scheduler_impl.h"
@@ skipping 133 matching lines @@
       base::WaitableEvent::ResetPolicy::AUTOMATIC,
       base::WaitableEvent::InitialState::NOT_SIGNALED);
 
   EXPECT_CALL(*task, Run(_));
   ON_CALL(*task, Run(_)).WillByDefault(Invoke([&completion](double) {
     completion.Signal();
   }));
 
   thread_->PostIdleTask(BLINK_FROM_HERE, task.release());
   // We need to post a wake-up task or idle work will never happen.
-  thread_->GetWebTaskRunner()->PostDelayedTask(BLINK_FROM_HERE,
-                                               WTF::Bind([] {}), 50ll);
+  thread_->GetWebTaskRunner()->PostDelayedTask(
+      BLINK_FROM_HERE, WTF::Bind([] {}), TimeDelta::FromMilliseconds(50));
 
   completion.Wait();
 }
 
 TEST_F(WebThreadImplForWorkerSchedulerTest, TestTaskObserver) {
   std::string calls;
   TestObserver observer(&calls);
 
   RunOnWorkerThread(FROM_HERE,
                     base::Bind(&AddTaskObserver, thread_.get(), &observer));
@@ skipping 15 matching lines @@
   MockTask delayed_task;
 
   EXPECT_CALL(task, Run()).Times(0);
   EXPECT_CALL(delayed_task, Run()).Times(0);
 
   RunOnWorkerThread(FROM_HERE, base::Bind(&ShutdownOnThread, thread_.get()));
   thread_->GetWebTaskRunner()->PostTask(
       BLINK_FROM_HERE, WTF::Bind(&MockTask::Run, WTF::Unretained(&task)));
   thread_->GetWebTaskRunner()->PostDelayedTask(
       BLINK_FROM_HERE,
-      WTF::Bind(&MockTask::Run, WTF::Unretained(&delayed_task)), 50ll);
+      WTF::Bind(&MockTask::Run, WTF::Unretained(&delayed_task)),
+      TimeDelta::FromMilliseconds(50));
   thread_.reset();
 }
 
 }  // namespace scheduler
 }  // namespace blink