scheduler: Move the Blink scheduler into Blink

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.h"
-#include "components/scheduler/base/task_queue_manager_delegate.h"
-
-namespace scheduler {
-
-VirtualTimeDomain::VirtualTimeDomain(TimeDomain::Observer* observer,
-                                     base::TimeTicks initial_time)
-    : TimeDomain(observer), now_(initial_time), task_queue_manager_(nullptr) {}
-
-VirtualTimeDomain::~VirtualTimeDomain() {}
-
-void VirtualTimeDomain::OnRegisterWithTaskQueueManager(
-    TaskQueueManager* task_queue_manager) {
-  task_queue_manager_ = task_queue_manager;
-  DCHECK(task_queue_manager_);
-}
-
-LazyNow VirtualTimeDomain::CreateLazyNow() const {
-  base::AutoLock lock(lock_);
-  return LazyNow(now_);
-}
-
-base::TimeTicks VirtualTimeDomain::Now() const {
-  base::AutoLock lock(lock_);
-  return now_;
-}
-
-void VirtualTimeDomain::RequestWakeup(base::TimeTicks now,
-                                      base::TimeDelta delay) {
-  // We don't need to do anything here because the caller of AdvanceTo is
-  // responsible for calling TaskQueueManager::MaybeScheduleImmediateWork if
-  // needed.
-}
-
-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;
-}
-
-void VirtualTimeDomain::RequestDoWork() {
-  task_queue_manager_->MaybeScheduleImmediateWork(FROM_HERE);
-}
-
-const char* VirtualTimeDomain::GetName() const {
-  return "VirtualTimeDomain";
-}
-
-}  // namespace scheduler