From 650ad3bf45144275240ae0805a40ba2721b46d19 Mon Sep 17 00:00:00 2001
From: "cls%seawood.org" <cls%seawood.org>
Date: Tue, 7 Oct 2003 22:43:54 +0000
Subject: [PATCH] what dbaron said

---
 content/html/document/src/nsHTMLDocument.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/content/html/document/src/nsHTMLDocument.cpp b/content/html/document/src/nsHTMLDocument.cpp
index 26fdc703e9b..0bd94fa0bb3 100644
--- a/content/html/document/src/nsHTMLDocument.cpp
+++ b/content/html/document/src/nsHTMLDocument.cpp
@@ -1287,7 +1287,9 @@ PRInt32
 nsHTMLDocument::InternalGetNumberOfStyleSheets()
 {
   PRInt32 count = mStyleSheets.Count();
-  if (count != 0 && mStyleAttrStyleSheet == mStyleSheets[count - 1])
+  if (count != 0 && 
+      mStyleAttrStyleSheet == 
+          NS_STATIC_CAST(nsIStyleSheet*, mStyleSheets[count - 1]))
     --count;
   --count; // for the attr sheet
   NS_ASSERTION(count >= 0, "Why did we end up with a negative count?");