It's only used in non-compositing WMs, to implement popup transparency, and it's completely untested. Instead, do not draw shadows and rounded corners on those WMs. Differential Revision: https://phabricator.services.mozilla.com/D219141
It's only used in non-compositing WMs, to implement popup transparency, and it's completely untested. Instead, do not draw shadows and rounded corners on those WMs. Differential Revision: https://phabricator.services.mozilla.com/D219141