Move throttling of background timers into the renderer scheduler

components/scheduler/base/task_queue_sets_unittest.cc

Index: components/scheduler/base/task_queue_sets_unittest.cc
diff --git a/components/scheduler/base/task_queue_sets_unittest.cc b/components/scheduler/base/task_queue_sets_unittest.cc
index 568c0d133e464e97dd52eac256ac5d0968ff94ff..a856d12f3271f5680c7bd27cfe2a5547ae88f790 100644
--- a/components/scheduler/base/task_queue_sets_unittest.cc
+++ b/components/scheduler/base/task_queue_sets_unittest.cc
@@ -17,7 +17,7 @@ class TaskQueueSetsTest : public testing::Test {
  public:
   void SetUp() override {
     virtual_time_domain_ = make_scoped_refptr<VirtualTimeDomain>(
-        new VirtualTimeDomain(base::TimeTicks()));
+        new VirtualTimeDomain(nullptr, base::TimeTicks()));
     task_queue_sets_.reset(new TaskQueueSets(kNumSets));
   }