Function scheduleCallback

lib/assets/react-source/development/react.js:14736–14739

(reactPriorityLevel, callback, options)

	  return Scheduler_runWithPriority(priorityLevel, fn);
	}
	function scheduleCallback(reactPriorityLevel, callback, options) {
	  var priorityLevel = reactPriorityToSchedulerPriority(reactPriorityLevel);
	  return Scheduler_scheduleCallback(priorityLevel, callback, options);
	}
	function scheduleSyncCallback(callback) {
	  // Push this callback into an internal queue. We'll flush these either in
	  // the next tick, or earlier if something calls `flushSyncCallbackQueue`.