scheduler: Throttle timers in out-of-view frames

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 b9e74d0dd11f45af3ed343fa829aa9f3fecf1137..267281f6f119b515cacdf10ce83481fd74b9363e 100644
--- a/components/scheduler/renderer/renderer_scheduler_impl.cc
+++ b/components/scheduler/renderer/renderer_scheduler_impl.cc
@@ -230,6 +230,14 @@ scoped_refptr<TaskQueue> RendererSchedulerImpl::NewTimerTaskRunner(
   return timer_task_queue;
 }
 
+scoped_refptr<TaskQueue> RendererSchedulerImpl::NewDefaultTaskRunner(
+    const char* name) {
+  helper_.CheckOnValidThread();
+  scoped_refptr<TaskQueue> default_task_queue(helper_.NewTaskQueue(
+      TaskQueue::Spec(name).SetShouldMonitorQuiescence(true)));
+  return default_task_queue;
+}
+
 std::unique_ptr<RenderWidgetSchedulingState>
 RendererSchedulerImpl::NewRenderWidgetSchedulingState() {
   return render_widget_scheduler_signals_.NewRenderWidgetSchedulingState();