Move has_incoming_immediate_work to the TaskQueueManager

third_party/WebKit/Source/platform/scheduler/base/time_domain.h

 // 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.
 
 #ifndef THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_
 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_
 
 #include <map>
 
 #include "base/callback.h"
@@ skipping 73 matching lines @@
 
   // Migrates |queue| from this time domain to |destination_time_domain|.
   // Main-thread only.
   void MigrateQueue(internal::TaskQueueImpl* queue,
                     TimeDomain* destination_time_domain);
 
   // If there is a scheduled delayed task, |out_task_queue| is set to the queue
   // the next task was posted to and it returns true.  Returns false otherwise.
   bool NextScheduledTaskQueue(TaskQueue** out_task_queue) const;
 
-  // Adds |queue| to |has_incoming_immediate_work_| which causes
-  // UpdateWorkQueues to reload the immediate work queue if empty. Can be
-  // called from any thread.
-  // TODO(alexclarke): Move this to the TaskQueueManager.
-  void OnQueueHasIncomingImmediateWork(internal::TaskQueueImpl* queue);
+  // Notifies the time domain observer (if any) that |queue| has incoming
+  // immediate work.
+  void OnQueueHasImmediateWork(internal::TaskQueueImpl* queue);
 
   // Schedules a call to TaskQueueImpl::WakeUpForDelayedWork when this
   // TimeDomain reaches |delayed_run_time|.  This supersedes any previously
   // registered wakeup for |queue|.
   void ScheduleDelayedWork(internal::TaskQueueImpl* queue,
                            base::TimeTicks delayed_run_time,
                            base::TimeTicks now);
 
   // Cancels any scheduled calls to TaskQueueImpl::WakeUpForDelayedWork for
   // |queue|.
   void CancelDelayedWork(internal::TaskQueueImpl* queue);
 
   // Registers the |queue|.
   void RegisterQueue(internal::TaskQueueImpl* queue);
 
   // Removes |queue| from all internal data structures.
   void UnregisterQueue(internal::TaskQueueImpl* queue);
 
-  // Updates active queues associated with this TimeDomain.
-  void UpdateWorkQueues(LazyNow* lazy_now);
-
   // Called by the TaskQueueManager when the TimeDomain is registered.
   virtual void OnRegisterWithTaskQueueManager(
       TaskQueueManager* task_queue_manager) = 0;
 
   // The implementaion will secedule task processing to run with |delay| with
   // respect to the TimeDomain's time source.  Always called on the main thread.
   // NOTE this is only called by ScheduleDelayedWork if the scheduled runtime
   // is sooner than any previously sheduled work or if there is no other
   // scheduled work.
   virtual void RequestWakeup(base::TimeTicks now, base::TimeDelta delay) = 0;
@@ skipping 30 matching lines @@
       DCHECK(queue->heap_handle().IsValid());
       queue->set_heap_handle(HeapHandle());
 
       DCHECK_NE(queue->scheduled_time_domain_wakeup(), base::TimeTicks());
       queue->set_scheduled_time_domain_wakeup(base::TimeTicks());
     }
   };
 
   IntrusiveHeap<DelayedWakeup> delayed_wakeup_queue_;
 
-  // This lock guards only |has_incoming_immediate_work_|.  It's not expected to
-  // be heavily contended.
-  mutable base::Lock has_incoming_immediate_work_lock_;
-
-  // Set of task queues with newly available work on the incoming queue.
-  // TODO(alexclarke): Move this to the TaskQueueManager.
-  std::set<internal::TaskQueueImpl*> has_incoming_immediate_work_;
-
-  Observer* observer_;  // NOT OWNED.
+  Observer* const observer_;  // NOT OWNED.
 
   base::ThreadChecker main_thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(TimeDomain);
 };
 
 }  // namespace scheduler
 }  // namespace blink
 
 #endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_BASE_TIME_DOMAIN_H_