From f6691a5e6d3083d3cf881020031fbc8dde838054 Mon Sep 17 00:00:00 2001
From: "bzbarsky%mit.edu" <bzbarsky%mit.edu>
Date: Sun, 20 Feb 2005 22:29:28 +0000
Subject: [PATCH] Assert when someone tries to give us out-of-flow kids.  Bug
 282943, r+sr=dbaron

---
 layout/xul/base/src/nsBoxFrame.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/layout/xul/base/src/nsBoxFrame.cpp b/layout/xul/base/src/nsBoxFrame.cpp
index b67618b1782..3da4c436a63 100644
--- a/layout/xul/base/src/nsBoxFrame.cpp
+++ b/layout/xul/base/src/nsBoxFrame.cpp
@@ -1158,6 +1158,7 @@ NS_IMETHODIMP
 nsBoxFrame::RemoveFrame(nsIAtom*        aListName,
                         nsIFrame*       aOldFrame)
 {
+  NS_PRECONDITION(!aListName, "We don't support out-of-flow kids");
   nsPresContext* presContext = GetPresContext();
   nsBoxLayoutState state(presContext);
 
@@ -1182,6 +1183,7 @@ nsBoxFrame::InsertFrames(nsIAtom*        aListName,
                          nsIFrame*       aPrevFrame,
                          nsIFrame*       aFrameList)
 {
+   NS_PRECONDITION(!aListName, "We don't support out-of-flow kids");
    nsBoxLayoutState state(GetPresContext());
 
    // insert the child frames
@@ -1208,6 +1210,7 @@ NS_IMETHODIMP
 nsBoxFrame::AppendFrames(nsIAtom*        aListName,
                          nsIFrame*       aFrameList)
 {
+   NS_PRECONDITION(!aListName, "We don't support out-of-flow kids");
    nsBoxLayoutState state(GetPresContext());
 
    // append the new frames