[scheduler] Add WakeupBudgetPool.

third_party/WebKit/public/platform/scheduler/base/task_queue.h

Index: third_party/WebKit/public/platform/scheduler/base/task_queue.h
diff --git a/third_party/WebKit/public/platform/scheduler/base/task_queue.h b/third_party/WebKit/public/platform/scheduler/base/task_queue.h
index de227cc40f376a60f8b96c724160cf3e6c9f7efa..5dbbc1743b46ebab5bfb86b564ada5af4d106582 100644
--- a/third_party/WebKit/public/platform/scheduler/base/task_queue.h
+++ b/third_party/WebKit/public/platform/scheduler/base/task_queue.h
@@ -220,6 +220,8 @@ class BLINK_PLATFORM_EXPORT TaskQueue : public base::SingleThreadTaskRunner {
   // blocked by it.
   virtual void RemoveFence() = 0;
 
+  virtual bool HasFence() const = 0;
+
   virtual bool BlockedByFence() const = 0;

[alex clarke (OOO till 29th), 2017/04/21 09:14:19]

Please add:  // Returns true if the queue has a fence which is blocking
execution of tasks.

[altimin, 2017/04/25 13:22:36]

Done.

 
   virtual void SetObserver(Observer* observer) = 0;