Bug 1725304 - Fix tracking of late surfaces for debug overlays in SW-WR. r=gw
Bug 1725304 - Fix tracking of late surfaces for debug overlays in SW-WR. r=gw

Differential Revision: https://phabricator.services.mozilla.com/D122410

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/610ae1bbeff8a415f55f6ec4e013faf0302e5b2e

servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender