[css-nesting] Why does CSSStyleRule not inherit from CSSGroupingRule? #8940
Description
https://drafts.csswg.org/css-nesting/#cssom-style has:
partial interface CSSStyleRule {
[SameObject] readonly attribute CSSRuleList cssRules;
unsigned long insertRule(CSSOMString rule, optional unsigned long index = 0);
undefined deleteRule(unsigned long index);
};Why doing that rather than inheriting from CSSGroupingRule, which gives you that?
cc @tabatkins @sesse