Bug 1699929 - Check for non-zero uv_step. r=jrmuizel
Bug 1699929 - Check for non-zero uv_step. r=jrmuizel

Differential Revision: https://phabricator.services.mozilla.com/D109808

[ghsync] From https://hg.mozilla.org/mozilla-central/rev/2cf240a96f61653419f613bd82ff841d6e57b8f5

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