BUG=angleproject:1354

Change-Id: Ied04fa28387f3bef9f2bead7b60878b1a353c8bd
Reviewed-on: https://chromium-review.googlesource.com/399039
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>