Move throttling of background timers into the renderer scheduler

components/scheduler/child/scheduler_helper.cc

Index: components/scheduler/child/scheduler_helper.cc
diff --git a/components/scheduler/child/scheduler_helper.cc b/components/scheduler/child/scheduler_helper.cc
index f4081fde958130a00da733500bc63f0b8f37256c..28dec87957501a8ec33a83e71f6f8344b8a8d55c 100644
--- a/components/scheduler/child/scheduler_helper.cc
+++ b/components/scheduler/child/scheduler_helper.cc
@@ -124,16 +124,30 @@ void SchedulerHelper::SetObserver(Observer* observer) {
   task_queue_manager_->SetObserver(this);
 }
 
-void SchedulerHelper::OnUnregisterTaskQueue(
-    const scoped_refptr<internal::TaskQueueImpl>& queue) {
-  if (observer_)
-    observer_->OnUnregisterTaskQueue(queue);
-}
-
 const scoped_refptr<RealTimeDomain>& SchedulerHelper::real_time_domain() const {
   CheckOnValidThread();
   DCHECK(task_queue_manager_);
   return task_queue_manager_->real_time_domain();
 }
 
+void SchedulerHelper::RegisterTimeDomain(
+    const scoped_refptr<TimeDomain>& time_domain) {
+  CheckOnValidThread();
+  DCHECK(task_queue_manager_);
+  task_queue_manager_->RegisterTimeDomain(time_domain);
+}
+
+void SchedulerHelper::UnregisterTimeDomain(
+    const scoped_refptr<TimeDomain>& time_domain) {
+  CheckOnValidThread();
+  if (task_queue_manager_)
+    task_queue_manager_->UnregisterTimeDomain(time_domain);
+}
+
+void SchedulerHelper::OnUnregisterTaskQueue(
+    const scoped_refptr<internal::TaskQueueImpl>& queue) {
+  if (observer_)
+    observer_->OnUnregisterTaskQueue(queue);
+}
+
 }  // namespace scheduler