Depends on D14334 Differential Revision: https://phabricator.services.mozilla.com/D14335 --HG-- extra : moz-landing-system : lando
MozReview-Commit-ID: E71TxvgfJlJ --HG-- extra : rebase_source : 30ca63df77e48a44de4d3e90182440c3937ed32f