nsBoxFrame* it = new (aPresShell) nsBoxFrame(aPresShell, aIsRoot, aLayoutManager, aIsHorizontal);
nsBoxFrame* it = new (aPresShell) nsBoxFrame(aPresShell, aIsRoot, aLayoutManager);
NS_NewBoxFrame ( nsIPresShell* aPresShell, nsIFrame** aNewFrame, PRBool aIsRoot, nsIBoxLayout* aLayoutManager, PRBool aIsHorizontal){  NS_PRECONDITION(aNewFrame, "null OUT ptr");  if (nsnull == aNewFrame) {    return NS_ERROR_NULL_POINTER;  }  nsBoxFrame* it = new (aPresShell) nsBoxFrame(aPresShell, aIsRoot, aLayoutManager, aIsHorizontal);  if (nsnull == it)    return NS_ERROR_OUT_OF_MEMORY;  *aNewFrame = it;  return NS_OK;  } // NS_NewBoxFrame