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components/scheduler/base/task_queue_manager.h

Index: components/scheduler/base/task_queue_manager.h
diff --git a/components/scheduler/base/task_queue_manager.h b/components/scheduler/base/task_queue_manager.h
index 7a7d6d459772829d43d871a6f2b5130cbeed881e..11dd965e4ae98c03865467a2785e2768c4303bf3 100644
--- a/components/scheduler/base/task_queue_manager.h
+++ b/components/scheduler/base/task_queue_manager.h
@@ -126,6 +126,10 @@ class SCHEDULER_EXPORT TaskQueueManager
 
   LazyNow CreateLazyNow() const;
 
+  TaskQueue* currently_executing_task_queue() const {
+    return currently_executing_task_queue_;
+  }
+
  private:
   friend class LazyNow;
   friend class internal::TaskQueueImpl;
@@ -236,6 +240,8 @@ class SCHEDULER_EXPORT TaskQueueManager
   const char* disabled_by_default_tracing_category_;
   const char* disabled_by_default_verbose_tracing_category_;
 
+  internal::TaskQueueImpl* currently_executing_task_queue_;  // NOT OWNED
+
   Observer* observer_;  // NOT OWNED
   scoped_refptr<DeletionSentinel> deletion_sentinel_;
   base::WeakPtrFactory<TaskQueueManager> weak_factory_;