BUG=angleproject:2635

Change-Id: If2a4893c4099dc4a1b699ba4e4e3ca2c0f946af8
Reviewed-on: https://chromium-review.googlesource.com/1118906Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>