Add todos for making scheduler better separated from importer.

includes/FeedsScheduler.inc

@@ -88,6 +88,8 @@ class FeedsScheduler implements FeedsSchedulerInterface {
    *
    * If drupal_queue is present, only pushes refresh tasks to queue and
    * returns. If drupal_queue is not available, works off tasks.
+   *
+   * @todo: Make import/expire agnostic, define general job callback interface.
    */
   public function cron() {
 
@@ -189,6 +191,8 @@ class FeedsScheduler implements FeedsSchedulerInterface {
    *
    * Used as worker callback invoked from feeds_scheduler_refresh() or
    * if drupal_queue is not enabled, directly from $this->cron().
+   *
+   * @todo: Make import/expire agnostic, define general job callback interface.
    */
   public function work($feed_info) {
     $importer = feeds_importer($feed_info['importer_id']);