Backed out changeset 18835f3f3936 (bug 1690319) for causing 1690689 a=backout
Backed out changeset 18835f3f3936 (bug 1690319) for causing 1690689 a=backout

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/9e3d6ba07824276af63c1e07010d8a554e220388

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