NS_ENSURE_ARG_POINTER(aParent);  *aParent = mContent; NS_IF_ADDREF(*aParent);
if (nsnull != mContent) { return mContent->QueryInterface(kISupportsIID, (void **)aParent); }
nsDOMCSSAttributeDeclaration::GetParent(nsISupports **aParent){  NS_ENSURE_ARG_POINTER(aParent);  *aParent = mContent;  NS_IF_ADDREF(*aParent);  return NS_OK;}