From: https://bugzilla.mozilla.org/show_bug.cgi?id=1372083

BUG=angleproject:2210
TEST=angle_end2end_tests
Change-Id: I00539fb7e0bc9a21f90f5c87d7082c2a6b1ed907
Reviewed-on: https://chromium-review.googlesource.com/747814Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>