We currently spawn two xdg-dbus-proxy processes, one for the session bus and one for the atspi bus, but we can do both with a single process.
Pull request: https://github.com/WebKit/WebKit/pull/4127
Committed 254293@main (f6198cdad380): <https://commits.webkit.org/254293@main> Reviewed commits have been landed. Closing PR #4127 and removing active labels.