Was flaky.

BUG=angleproject:2301

Change-Id: Id71cf6c43e133810c64535bbde494d12546b0adc
Reviewed-on: https://chromium-review.googlesource.com/854978Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>