Revert of [cherrypick] Fix computation of runtime for throttled tasks

components/scheduler/base/task_queue_impl.cc

Index: components/scheduler/base/task_queue_impl.cc
diff --git a/components/scheduler/base/task_queue_impl.cc b/components/scheduler/base/task_queue_impl.cc
index 0d79b0db3f784f9de6284f57ac363da472198a42..b449e2dd9183be5d99f9e2e8c06d5a405e61822f 100644
--- a/components/scheduler/base/task_queue_impl.cc
+++ b/components/scheduler/base/task_queue_impl.cc
@@ -149,11 +149,8 @@
     return false;
   LazyNow lazy_now(any_thread().time_domain->CreateLazyNow());
   base::TimeTicks desired_run_time;
-  if (delay > base::TimeDelta()) {
-    base::TimeTicks time_domain_now = lazy_now.Now();
-    desired_run_time =
-        any_thread().time_domain->ComputeDelayedRunTime(time_domain_now, delay);
-  }
+  if (delay > base::TimeDelta())
+    desired_run_time = lazy_now.Now() + delay;
   return PostDelayedTaskLocked(&lazy_now, from_here, task, desired_run_time,
                                task_type);
 }