From ba3a4751368f7845e93d3ebe461ce8478af6b5c1 Mon Sep 17 00:00:00 2001
From: "rpotts%netscape.com"
 <rpotts%netscape.com@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Fri, 22 Dec 2000 21:47:26 +0000
Subject: [PATCH] bug #63529.  Added a null-pointer check in
 nsWebShell::OnStateChange(...)

git-svn-id: svn://10.0.0.236/trunk@84012 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/docshell/base/nsWebShell.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mozilla/docshell/base/nsWebShell.cpp b/mozilla/docshell/base/nsWebShell.cpp
index ad8301bf440..68f55561f66 100644
--- a/mozilla/docshell/base/nsWebShell.cpp
+++ b/mozilla/docshell/base/nsWebShell.cpp
@@ -894,6 +894,10 @@ NS_IMETHODIMP
 nsWebShell::OnStateChange(nsIWebProgress *aProgress, nsIRequest *aRequest,
                           PRInt32 aStateFlags, nsresult aStatus)
 {
+  if (!aRequest) {
+    return NS_OK;
+  }
+
   if (aStateFlags & STATE_IS_DOCUMENT) {
     nsCOMPtr<nsIWebProgress> webProgress(do_QueryInterface(mLoadCookie));