[scheduler] Add options to TaskQueue::InsertFence

third_party/WebKit/Source/platform/scheduler/renderer/task_queue_throttler.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_RENDERER_THROTTLING_HELPER_H_
 #define THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_THROTTLING_HELPER_H_
 
 #include <set>
 #include <unordered_map>
 
@@ skipping 150 matching lines @@
   // hard-code string instead.
   TaskQueueThrottler(RendererSchedulerImpl* renderer_scheduler,
                      const char* tracing_category);
 
   ~TaskQueueThrottler() override;
 
   // TimeDomain::Observer implementation:
   void OnTimeDomainHasImmediateWork(TaskQueue*) override;
   void OnTimeDomainHasDelayedWork(TaskQueue*) override;
 
-  // The purpose of this method is to make sure throttling doesn't conflict with
-  // enabling/disabling the queue for policy reasons.
-  // If |task_queue| is throttled then the TaskQueueThrottler remembers the
-  // |enabled| setting.  In addition if |enabled| is false then the queue is
-  // immediatly disabled.  Otherwise if |task_queue| not throttled then
-  // TaskQueue::SetEnabled(enabled) is called.
-  void SetQueueEnabled(TaskQueue* task_queue, bool enabled);
-
   // Increments the throttled refcount and causes |task_queue| to be throttled
   // if its not already throttled.
   void IncreaseThrottleRefCount(TaskQueue* task_queue);
 
   // If the refcouint is non-zero it's decremented.  If the throttled refcount
   // becomes zero then |task_queue| is unthrottled.  If the refcount was already
   // zero this function does nothing.
   void DecreaseThrottleRefCount(TaskQueue* task_queue);
 
   // Removes |task_queue| from |queue_details| and from appropriate budget pool.
@@ skipping 26 matching lines @@
   // Accounts for given task for cpu-based throttling needs.
   void OnTaskRunTimeReported(TaskQueue* task_queue,
                              base::TimeTicks start_time,
                              base::TimeTicks end_time);
 
   void AsValueInto(base::trace_event::TracedValue* state,
                    base::TimeTicks now) const;
 
  private:
   struct Metadata {
-    Metadata()
-        : throttling_ref_count(0), enabled(false), time_budget_pool(nullptr) {}
-
-    Metadata(size_t ref_count, bool is_enabled)
-        : throttling_ref_count(ref_count),
-          enabled(is_enabled),
-          time_budget_pool(nullptr) {}
+    Metadata() : throttling_ref_count(0), time_budget_pool(nullptr) {}
 
     size_t throttling_ref_count;
-    bool enabled;
 
     TimeBudgetPool* time_budget_pool;
-
-    void SetQueueEnabled(TaskQueue* task_queue);
   };
   using TaskQueueMap = std::unordered_map<TaskQueue*, Metadata>;
 
   void PumpThrottledTasks();
 
   // Note |unthrottled_runtime| might be in the past. When this happens we
   // compute the delay to the next runtime based on now rather than
   // unthrottled_runtime.
   void MaybeSchedulePumpThrottledTasks(
       const tracked_objects::Location& from_here,
@@ skipping 32 matching lines @@
 
   base::WeakPtrFactory<TaskQueueThrottler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskQueueThrottler);
 };
 
 }  // namespace scheduler
 }  // namespace blink
 
 #endif  // THIRD_PARTY_WEBKIT_SOURCE_PLATFORM_SCHEDULER_RENDERER_THROTTLING_HELPER_H_