BUG=angleproject:1920
TEST=angle_end2end_tests

Change-Id: I90bcd3bf5a078623b3a739615fbc7b157b6fb94c
Reviewed-on: https://chromium-review.googlesource.com/808144Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>