An AppletHandle with the entry point the bridge's revocation hook calls.
Readonly
Close the applet: revoke its binding, remove its frame, drop its queues. Idempotent.
Mark the applet revoked and remove its frame. Idempotent with close.
close
Tell the guard whether the window is on screen and focused. Drives deferral and tightening.
An AppletHandle with the entry point the bridge's revocation hook calls.