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Note that as part of adding these tests, a bug was discovered
(https://crbug.com/1012707).

Change-Id: Ib8fe265f673bf773efc6968c743445ad3c4eb7b0
Bug: 1012707
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1831803Reviewed-by: Camille Lamy <clamy@chromium.org>
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org>
Commit-Queue: Lowell Manners <lowell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#705060}