BUG=angleproject:2775
TEST=angle_end2end_tests

Change-Id: Ic980d86cd787bcf29f622e68b0c38b0eb6ca5688
Reviewed-on: https://chromium-review.googlesource.com/1190182Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>