Mozilla bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1395107

BUG=angleproject:2370

Change-Id: Id0c0cecbe14c1c0a1b3de18b0ccf70d00af81a80
Reviewed-on: https://chromium-review.googlesource.com/935454Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>