nsRuleNode* ruleNode = (nsRuleNode*)aData; ruleNode->Destroy(); return PR_TRUE;
ChildrenHashEntry *entry = NS_STATIC_CAST(ChildrenHashEntry*, hdr); entry->mRuleNode->Destroy(); return PL_DHASH_NEXT;
PR_STATIC_CALLBACK(PRBool) DeleteRuleNodeChildren(nsHashKey* aKey, void* aData, void* aClosure){  nsRuleNode* ruleNode = (nsRuleNode*)aData;  ruleNode->Destroy();  return PR_TRUE;}