1. @DomName('Document.exitPointerLock')
  2. @DocsEditable()
  3. @Experimental()
void exitPointerLock()

Source 

@DomName('Document.exitPointerLock')
@DocsEditable()
@Experimental() // untriaged
void exitPointerLock() =>
    _blink.BlinkDocument.instance.exitPointerLock_Callback_0_(this);