(reland) Adds TimeDomains to the TaskQueueManager

components/scheduler/base/delayed_task_delegate_impl.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/delayed_task_delegate_impl.h"
+
+#include "base/bind.h"
+#include "components/scheduler/base/task_queue_impl.h"
+#include "components/scheduler/base/task_queue_manager_delegate.h"
+
+namespace scheduler {
+
+DelayedTaskDelegateImpl::DelayedTaskDelegateImpl(
+    TaskQueueManagerDelegate* delegate, base::Closure do_work_closure)
+    : delegate_(delegate),
+      do_work_closure_(do_work_closure),
+      weak_factory_(this) {}
+
+DelayedTaskDelegateImpl::~DelayedTaskDelegateImpl() {}
+
+base::TimeTicks DelayedTaskDelegateImpl::CachedNow() {
+  if (cached_now_.is_null())
+    cached_now_ = delegate_->NowTicks();
+  return cached_now_;
+}
+
+void DelayedTaskDelegateImpl::InvalidateNowCache() {
+  cached_now_ = base::TimeTicks();
+}
+
+bool DelayedTaskDelegateImpl::BelongsToCurrentThread() const {
+  return delegate_ && delegate_->BelongsToCurrentThread();
+}
+
+void DelayedTaskDelegateImpl::PostScheduleDelayedWorkTaskOnMainThread(
+    internal::TaskQueueImpl* queue, base::TimeTicks delayed_run_time) {
+  if (!delegate_)
+    return;
+  delegate_->PostTask(
+      FROM_HERE, base::Bind(&DelayedTaskDelegateImpl::ScheduleDelayedWorkTask,
+                            weak_factory_.GetWeakPtr(),
+                            scoped_refptr<internal::TaskQueueImpl>(queue),
+                            delayed_run_time));
+}
+
+void DelayedTaskDelegateImpl::ScheduleDoWork(base::TimeDelta delay) {
+  if (!delegate_)
+    return;
+  delegate_->PostDelayedTask(FROM_HERE, do_work_closure_, delay);
+}
+
+}  // namespace scheduler