WPT import https://crrev.com/c/1170581 introduced new failures in external/wpt/css:

List of new failures:
external/wpt/css/css-overflow/overflow-shorthand-001.html new failing tests: https://crrev.com/c/1170581/4/third_party/WebKit/LayoutTests/external/wpt/css/css-overflow/overflow-shorthand-001-expected.txt

This import contains upstream changes from 8ab7aace6a65a045a1b8823988623afc4c1e4f09 to 56d7c6101f0ae73fd87d555623dd2c608d4cfc8c:
Introduced blink::mojom::WebUsbService with restricted methods.: https://github.com/web-platform-tests/wpt/commit/56d7c6101f0ae73fd87d555623dd2c608d4cfc8c
Convert compat+console+fullscreen+storage+url+xhr to idl_test (#12405): https://github.com/web-platform-tests/wpt/commit/9786a4b1317c03b89ea3bf2e997f2e2b6a3690ae
[wptrunner] Remove unused code: https://github.com/web-platform-tests/wpt/commit/1835be0041981df6ec0ad3d263fe5cf9aa2d6907
Update interfaces/*.idl boilerplate from reffy-reports (#12403): https://github.com/web-platform-tests/wpt/commit/9444c46e506b6231888b9b21613a8eceb4dac525
Swap order of values in 'overflow' shorthand property.: https://github.com/web-platform-tests/wpt/commit/3a5c2e2130880f8151a2e3f6c66ae0f30704cffb [affecting this directory]
Fix typo in contain-size ruby tests (s/internatl/internal) (#12392): https://github.com/web-platform-tests/wpt/commit/d776cd69648664a801effe951c6ba523b0c9c47b [affecting this directory]