BUG=angleproject:970

Change-Id: I24d393fcd75dd4ee510785e8475b093868701c77
Reviewed-on: https://chromium-review.googlesource.com/295152Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tryjob-Request: Geoff Lang <geofflang@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>