Revert of Adds TimeDomains to the TaskQueueManager

components/scheduler/base/virtual_time_domain.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/base/virtual_time_domain.h"
-
-#include "base/bind.h"
-#include "components/scheduler/base/task_queue_impl.h"
-#include "components/scheduler/base/task_queue_manager_delegate.h"
-
-namespace scheduler {
-
-VirtualTimeDomain::VirtualTimeDomain(base::TimeTicks initial_time)
-    : now_(initial_time) {}
-
-VirtualTimeDomain::~VirtualTimeDomain() {}
-
-LazyNow VirtualTimeDomain::CreateLazyNow() {
-  base::AutoLock lock(lock_);
-  return LazyNow(now_);
-}
-
-void VirtualTimeDomain::RequestWakeup(base::TimeDelta delay) {
-  // We don't need to do anything here because AdvanceTo triggers delayed tasks.
-}
-
-bool VirtualTimeDomain::MaybeAdvanceTime() {
-  return false;
-}
-
-void VirtualTimeDomain::AsValueIntoInternal(
-    base::trace_event::TracedValue* state) const {}
-
-void VirtualTimeDomain::AdvanceTo(base::TimeTicks now) {
-  base::AutoLock lock(lock_);
-  DCHECK_GE(now, now_);
-  now_ = now;
-  LazyNow lazy_now(now_);
-  WakeupReadyDelayedQueues(&lazy_now);
-}
-
-const char* VirtualTimeDomain::GetName() const {
-  return "VirtualTimeDomain";
-}
-
-}  // namespace scheduler