Revert of Adds TimeDomains to the TaskQueueManager

components/scheduler/child/idle_helper_unittest.cc

Index: components/scheduler/child/idle_helper_unittest.cc
diff --git a/components/scheduler/child/idle_helper_unittest.cc b/components/scheduler/child/idle_helper_unittest.cc
index 54c70e673953340e2d6e5df686182aca7c0221d1..b4f559bdf9745d92ba7e295875f7a35e0ca4b1a2 100644
--- a/components/scheduler/child/idle_helper_unittest.cc
+++ b/components/scheduler/child/idle_helper_unittest.cc
@@ -7,7 +7,6 @@
 #include "base/callback.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "cc/test/ordered_simple_task_runner.h"
-#include "components/scheduler/base/real_time_domain.h"
 #include "components/scheduler/base/task_queue.h"
 #include "components/scheduler/base/task_queue_manager.h"
 #include "components/scheduler/base/test_time_source.h"
@@ -845,9 +844,8 @@
   idle_helper_->EnableLongIdlePeriod();
   CheckIdlePeriodStateIs("in_long_idle_period_paused");
   // There shouldn't be any delayed tasks posted by the idle helper when paused.
-  base::TimeTicks next_pending_delayed_task;
-  EXPECT_FALSE(scheduler_helper_->real_time_domain()->NextScheduledRunTime(
-      &next_pending_delayed_task));
+  EXPECT_EQ(base::TimeTicks(),
+            scheduler_helper_->NextPendingDelayedTaskRunTime());
 
   // Posting a task should transition us to the an active state.
   max_idle_task_reposts = 2;
@@ -867,8 +865,8 @@
 
   // Once all task have been run we should go back to the paused state.
   CheckIdlePeriodStateIs("in_long_idle_period_paused");
-  EXPECT_FALSE(scheduler_helper_->real_time_domain()->NextScheduledRunTime(
-      &next_pending_delayed_task));
+  EXPECT_EQ(base::TimeTicks(),
+            scheduler_helper_->NextPendingDelayedTaskRunTime());
 
   idle_helper_->EndIdlePeriod();
   CheckIdlePeriodStateIs("not_in_idle_period");