Report expected task queueing time via UMA

components/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 "components/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 146 matching lines @@
   base::TimeDelta delay = base::TimeDelta::FromMilliseconds(50);
   EXPECT_CALL(*time_domain_.get(), RequestWakeup(_, delay));
   base::TimeTicks now = time_domain_->Now();
   base::TimeTicks delayed_runtime = now + delay;
   time_domain_->ScheduleDelayedWork(task_queue_.get(), delayed_runtime, now);
 
   base::TimeTicks next_run_time;
   ASSERT_TRUE(time_domain_->NextScheduledRunTime(&next_run_time));
   EXPECT_EQ(delayed_runtime, next_run_time);
 
-  time_domain_->UpdateWorkQueues(false, nullptr);
+  LazyNow lazy_now = time_domain_->CreateLazyNow();
+  time_domain_->UpdateWorkQueues(false, nullptr, lazy_now);
   ASSERT_TRUE(time_domain_->NextScheduledRunTime(&next_run_time));
   EXPECT_EQ(delayed_runtime, next_run_time);
 
   time_domain_->SetNow(delayed_runtime);
-  time_domain_->UpdateWorkQueues(false, nullptr);
+  lazy_now = time_domain_->CreateLazyNow();
+  time_domain_->UpdateWorkQueues(false, nullptr, lazy_now);
   ASSERT_FALSE(time_domain_->NextScheduledRunTime(&next_run_time));
 }
 
 TEST_F(TimeDomainTest, ClearExpiredWakeups) {
   base::TimeTicks now = time_domain_->Now();
   base::TimeDelta delay1 = base::TimeDelta::FromMilliseconds(10);
   base::TimeDelta delay2 = base::TimeDelta::FromMilliseconds(20);
   base::TimeTicks run_time1 = now + delay1;
   base::TimeTicks run_time2 = now + delay2;
 
@@ skipping 43 matching lines @@
 
 TEST_F(TimeDomainWithObserverTest, OnTimeDomainHasDelayedWork) {
   EXPECT_CALL(*observer_, OnTimeDomainHasDelayedWork());
   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