Revert of Optimize blink scheduler with an intrusive heap

third_party/WebKit/Source/platform/scheduler/base/time_domain_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/scheduler/base/time_domain.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "cc/test/ordered_simple_task_runner.h"
@@ skipping 140 matching lines @@
 
   // RequestWakeup should not be called when scheduling later tasks.
   EXPECT_CALL(*time_domain_.get(), RequestWakeup(_, _)).Times(0);
   time_domain_->ScheduleDelayedWork(task_queue2.get(), now + delay2, now);
   time_domain_->ScheduleDelayedWork(task_queue3.get(), now + delay3, now);
 
   // RequestWakeup should be called when scheduling earlier tasks.
   Mock::VerifyAndClearExpectations(time_domain_.get());
   EXPECT_CALL(*time_domain_.get(), RequestWakeup(_, delay4));
   time_domain_->ScheduleDelayedWork(task_queue4.get(), now + delay4, now);
-
-  task_queue2->UnregisterTaskQueue();
-  task_queue3->UnregisterTaskQueue();
-  task_queue4->UnregisterTaskQueue();
 }
 
 TEST_F(TimeDomainTest, UnregisterQueue) {
   scoped_refptr<internal::TaskQueueImpl> task_queue2_ =
       make_scoped_refptr(new internal::TaskQueueImpl(
           nullptr, time_domain_.get(), TaskQueue::Spec("test_queue2"),
           "test.category", "test.category"));
 
   EXPECT_CALL(*time_domain_.get(), RequestWakeup(_, _)).Times(1);
   base::TimeTicks now = time_domain_->Now();
@@ skipping 65 matching lines @@
 TEST_F(TimeDomainWithObserverTest, OnTimeDomainHasDelayedWork) {
   EXPECT_CALL(*observer_, OnTimeDomainHasDelayedWork(task_queue_.get()));
   EXPECT_CALL(*time_domain_.get(), RequestWakeup(_, _));
   base::TimeTicks now = time_domain_->Now();
   time_domain_->ScheduleDelayedWork(
       task_queue_.get(), now + base::TimeDelta::FromMilliseconds(10), now);
 }
 
 }  // namespace scheduler
 }  // namespace blink