Add an idle task to periodically sweep canceled delayed tasks

third_party/WebKit/Source/platform/scheduler/renderer/renderer_scheduler_impl.h

 // Copyright 2014 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_RENDERER_RENDERER_SCHEDULER_IMPL_H_
 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_
 
 #include "base/atomicops.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/synchronization/lock.h"
 #include "base/trace_event/trace_log.h"
 #include "device/base/synchronization/shared_memory_seqlock_buffer.h"
 #include "platform/scheduler/base/pollable_thread_safe_flag.h"
 #include "platform/scheduler/base/queueing_time_estimator.h"
 #include "platform/scheduler/base/thread_load_tracker.h"
+#include "platform/scheduler/child/idle_canceled_delayed_task_sweeper.h"
 #include "platform/scheduler/child/idle_helper.h"
 #include "platform/scheduler/child/scheduler_helper.h"
 #include "platform/scheduler/renderer/deadline_task_runner.h"
 #include "platform/scheduler/renderer/idle_time_estimator.h"
 #include "platform/scheduler/renderer/render_widget_signals.h"
 #include "platform/scheduler/renderer/task_cost_estimator.h"
 #include "platform/scheduler/renderer/user_model.h"
 #include "platform/scheduler/renderer/web_view_scheduler_impl.h"
 #include "public/platform/scheduler/renderer/renderer_scheduler.h"
 #include "public/platform/scheduler/base/task_time_observer.h"
@@ skipping 342 matching lines @@
       const TaskQueuePolicy& old_task_queue_policy,
       const TaskQueuePolicy& new_task_queue_policy) const;
 
   static const char* ExpensiveTaskPolicyToString(
       ExpensiveTaskPolicy expensive_task_policy);
 
   bool ShouldDisableThrottlingBecauseOfAudio(base::TimeTicks now);
 
   SchedulerHelper helper_;
   IdleHelper idle_helper_;
+  IdleCanceledDelayedTaskSweeper idle_canceled_delayed_task_sweeper_;
   std::unique_ptr<TaskQueueThrottler> task_queue_throttler_;
   RenderWidgetSignals render_widget_scheduler_signals_;
 
   const scoped_refptr<TaskQueue> control_task_runner_;
   const scoped_refptr<TaskQueue> compositor_task_runner_;
   std::unique_ptr<TaskQueue::QueueEnabledVoter>
       compositor_task_runner_enabled_voter_;
 
   using TaskQueueVoterMap =
       std::map<scoped_refptr<TaskQueue>,
@@ skipping 138 matching lines @@
 
   base::WeakPtrFactory<RendererSchedulerImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererSchedulerImpl);
 };
 
 }  // namespace scheduler
 }  // namespace blink
 
 #endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_RENDERER_SCHEDULER_IMPL_H_