BUG=angleproject:892

Change-Id: I681e2b92ac2e8b853c7d1271a5518c4b77a67929
Reviewed-on: https://chromium-review.googlesource.com/270260Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>