Prevent redundant DoWorks due to canceled delayed tasks

third_party/WebKit/Source/platform/scheduler/base/time_domain.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 <set>
 
 #include "platform/scheduler/base/task_queue_impl.h"
 #include "platform/scheduler/base/task_queue_manager_delegate.h"
@@ skipping 180 matching lines @@
     DelayedWakeupMultimap::iterator next_wakeup =
         delayed_wakeup_multimap_.begin();
     if (next_wakeup->first > lazy_now->Now())
       break;
     // A queue could have any number of delayed tasks pending so it's worthwhile
     // deduping calls to UpdateDelayedWorkQueue since it takes a lock.
     // NOTE the order in which these are called matters since the order
     // in which EnqueueTaskLocks is called is respected when choosing which
     // queue to execute a task from.
     if (dedup_set.insert(next_wakeup->second).second) {
-      next_wakeup->second->MoveReadyDelayedTasksToDelayedWorkQueue(lazy_now);
+      next_wakeup->second->WakeUpForDelayedWork(lazy_now);
     }
     delayed_wakeup_multimap_.erase(next_wakeup);
   }
 }
 
 void TimeDomain::ClearExpiredWakeups() {
   DCHECK(main_thread_checker_.CalledOnValidThread());
   LazyNow lazy_now(CreateLazyNow());
   while (!delayed_wakeup_multimap_.empty()) {
     DelayedWakeupMultimap::iterator next_wakeup =
@@ skipping 33 matching lines @@
   if (!delayed_wakeup_multimap_.empty()) {
     base::TimeDelta delay = delayed_wakeup_multimap_.begin()->first - Now();
     state->SetDouble("next_delay_ms", delay.InMillisecondsF());
   }
   AsValueIntoInternal(state);
   state->EndDictionary();
 }
 
 }  // namespace scheduler
 }  // namespace blink