Committed patchset #1 (id:1) manually as 197932 (presubmit successful).
Imported tests need to be fixed in upstream and re-imported, or fixes need to be upstreamed. Otherwise the fixes will be overwritten in the next import. Upstream fix done at https://github.com/w3c/csswg-test/commit/5736e65fede7c64546eda3703609c9a68cf4...