BUG=angleproject:1996

Change-Id: If635bf836251f90ec40d791b5f80d43f751aad9b
Reviewed-on: https://chromium-review.googlesource.com/476079
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>