HandlerFrameActor = {
  registered: false,

  register() {
    if (this.registered) {
      return;
    }

    lazy.ActorManagerParent.addJSWindowActors({
      MessageHandlerFrame: FRAME_ACTOR_CONFIG,
    });
    this.registered = true;
    lazy.logger.trace("Registered MessageHandlerFrame actors");
  },
};
PK