The review has a broader scope than just the 4 properties added here. None of the reported issues were related to these properties though.
Support the flow-relative Corner Rounding properties following CSS Logical Properties and Values spec. Specifically, the following logical properties are included:
The flow-relative Corner Rounding properties (border-*-radius) will allow to set top-left, bottom-left, top-right and bottom-right box corners with logical mappings rather than physical.
Is this feature supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?
It's just 4 new CSS properties that will appear in DevTools as any other property.
There'll be use counters for the new properties (as it happens for every CSS property).
Interoperability and Compatibility
Firefox already supports these properties, and we're planning to implement these in WebKit too.
These properties will be used together with writing-mode and direction.
Just like using any other CSS property.
Is this feature fully tested by web-platform-tests? Link to test suite results from wpt.fyi.
The tests related to sideways-lr and sideways-rl will fail, as these are not supported in Chromium yet (https://crbug.com/680331)
Entry on the feature dashboard