From e10f58bc431e3e1795db0fb711cc3fb6afc89784 Mon Sep 17 00:00:00 2001
From: Marco Zehe <marco.zehe@googlemail.com>
Date: Wed, 11 Jun 2008 10:27:25 +0200
Subject: [PATCH] bug 432967 - WARNING: NS_ENSURE_TRUE(aContent) failed: file
 nsAccessibilityUtils.cpp, line 262, patch by Ginn Chen <ginn.chen@sun.com>,
 r=aaronlev

---
 accessible/src/base/nsAccessible.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/accessible/src/base/nsAccessible.cpp b/accessible/src/base/nsAccessible.cpp
index f3278baff946..c6c9659fe6da 100644
--- a/accessible/src/base/nsAccessible.cpp
+++ b/accessible/src/base/nsAccessible.cpp
@@ -2659,8 +2659,11 @@ nsAccessible::GetNumActions(PRUint8 *aNumActions)
   if (IsDefunct())
     return NS_ERROR_FAILURE;
 
+  nsCOMPtr<nsIContent> content = GetRoleContent(mDOMNode);
+  if (!content)
+    return NS_OK;
+
   // Check if it's an simple xlink.
-  nsCOMPtr<nsIContent> content(do_QueryInterface(mDOMNode));
   if (nsAccUtils::IsXLink(content)) {
     *aNumActions = 1;
     return NS_OK;