This is necessary before we enable the ESLint rule to require using
ChromeUtils for module imports rather than older methods.
MozReview-Commit-ID: mKqByUS0o2
--HG--
extra : rebase_source : d4b856aac7ff7eddc37cbf591c4e6522c45453e2
extra : histedit_source : 1ca2b6031e480fb44a15991241901224acc9e52f