UndisplayedNode(nsIContent* aContent, nsIStyleContext* aStyle)
UndisplayedNode(nsIContent* aContent, nsStyleContext* aStyle)
MOZ_DECL_CTOR_COUNTER(UndisplayedNode)class UndisplayedNode {public:  UndisplayedNode(nsIContent* aContent, nsIStyleContext* aStyle)    : mContent(aContent),      mStyle(aStyle),      mNext(nsnull)  {    MOZ_COUNT_CTOR(UndisplayedNode);  }