*aResult = mChildrenElement; NS_IF_ADDREF(*aResult);
*aResult = nsnull; *aDefaultContent = nsnull; if (mContent) return mPrototypeBinding->GetInsertionPoint(mBoundElement, mContent, aChild, aResult, aIndex, aDefaultContent); else if (mNextBinding) return mNextBinding->GetInsertionPoint(aChild, aResult, aIndex, aDefaultContent);
nsXBLBinding::GetInsertionPoint(nsIContent** aResult){  *aResult = mChildrenElement;  NS_IF_ADDREF(*aResult);  return NS_OK;}