BUG=angleproject:1298

Change-Id: I32750d5d81c14fe5a17634586cddf117f0a4e692
Reviewed-on: https://chromium-review.googlesource.com/362157Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>