BUG=angleproject:1209

Change-Id: I490c524d203dd72a8e6c556b537c4254720d9447
Reviewed-on: https://chromium-review.googlesource.com/315510Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tryjob-Request: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>