BUG=angleproject:2315

Change-Id: I3ef289a6043745c822e1c9b0a1b363ac81292c4c
Reviewed-on: https://chromium-review.googlesource.com/878021Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>