From 9c28a0db4003216a74f424c24821d9e8a6f5c849 Mon Sep 17 00:00:00 2001
From: Alexander Surkov <surkov.alexander@gmail.com>
Date: Thu, 4 Aug 2011 12:57:31 +0900
Subject: [PATCH] Bug 676340 - Crash [@ nsAccessible::NativeState() ] (called
 by nsXULTextFieldAccessible::GetValue), r=tbsaunde

---
 accessible/src/xul/nsXULFormControlAccessible.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/accessible/src/xul/nsXULFormControlAccessible.cpp b/accessible/src/xul/nsXULFormControlAccessible.cpp
index 94b3f42e4f25..5020436b8810 100644
--- a/accessible/src/xul/nsXULFormControlAccessible.cpp
+++ b/accessible/src/xul/nsXULFormControlAccessible.cpp
@@ -686,6 +686,9 @@ NS_IMPL_ISUPPORTS_INHERITED3(nsXULTextFieldAccessible, nsAccessible, nsHyperText
 
 NS_IMETHODIMP nsXULTextFieldAccessible::GetValue(nsAString& aValue)
 {
+  if (IsDefunct())
+    return NS_ERROR_FAILURE;
+
   PRUint64 state = NativeState();
 
   if (state & states::PROTECTED)    // Don't return password text!