BUG=angleproject:1002

Change-Id: I13dfe218fd9dce6581843d7fab33ce482187e351
Reviewed-on: https://chromium-review.googlesource.com/270771Tested-by: Austin Kinross <aukinros@microsoft.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>