UndisplayedMap::AddNodeFor(nsIContent* aParentContent, nsIContent* aChild, nsIStyleContext* aStyle)
UndisplayedMap::AddNodeFor(nsIContent* aParentContent, nsIStyleContext* aPseudoStyle)
UndisplayedMap::AddNodeFor(nsIContent* aParentContent, nsIContent* aChild,                            nsIStyleContext* aStyle){  UndisplayedNode*  node = new UndisplayedNode(aChild, aStyle);  if (! node) {    return NS_ERROR_OUT_OF_MEMORY;  }  return AppendNodeFor(node, aParentContent);}