Throttling Helper to disable task queue until PumpThrottledTasks called

components/scheduler/renderer/renderer_scheduler_impl.cc

Index: components/scheduler/renderer/renderer_scheduler_impl.cc
diff --git a/components/scheduler/renderer/renderer_scheduler_impl.cc b/components/scheduler/renderer/renderer_scheduler_impl.cc
index 3ae7991381cf6b59f152c4dbce6d4b3b2a3a95e5..8b6f41bb707b9e76ce1d696d1f12160c8ea726cf 100644
--- a/components/scheduler/renderer/renderer_scheduler_impl.cc
+++ b/components/scheduler/renderer/renderer_scheduler_impl.cc
@@ -844,7 +844,10 @@ void RendererSchedulerImpl::ApplyTaskQueuePolicy(
     TaskQueue* task_queue,
     const TaskQueuePolicy& old_task_queue_policy,
     const TaskQueuePolicy& new_task_queue_policy) const {
-  task_queue->SetQueueEnabled(new_task_queue_policy.is_enabled);
+  // The ThrottlingHelper also calls SetQueueEnabled, so we can avoid calling
+  // this here.
+  if (new_task_queue_policy.time_domain_type != TimeDomainType::THROTTLED)
+    task_queue->SetQueueEnabled(new_task_queue_policy.is_enabled);
   if (old_task_queue_policy.priority != new_task_queue_policy.priority)
     task_queue->SetQueuePriority(new_task_queue_policy.priority);