asCSSRuleList    1434 Source/core/inspector/InspectorStyleSheet.cpp         RefPtrWillBeRawPtr<CSSRuleList> childRuleList = asCSSRuleList(rule);
asCSSRuleList    1444 Source/core/inspector/InspectorStyleSheet.cpp         collectFlatRules(asCSSRuleList(pageStyleSheet()), &m_flatRules);