BUG=angleproject:1684

Change-Id: I0ec11ec79f2e9893600a8ffd8cdbfc6040fb6f70
Reviewed-on: https://chromium-review.googlesource.com/426402
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>