BUG=angleproject:1468

Change-Id: Ief4b0e7d7a0420e59e547cd24fde53deb3718ccb
Reviewed-on: https://chromium-review.googlesource.com/388845
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>