From 4751e18f613a9f901b96622b1ef8505e4df8d3f5 Mon Sep 17 00:00:00 2001
From: Justin Dolske <dolske@mozilla.com>
Date: Tue, 19 Apr 2011 14:18:17 -0700
Subject: [PATCH] Bug 637160 - window-modal prompts used instead of tab-modal
 prompts when reentering a page using back/forward. r=bz

---
 layout/base/nsDocumentViewer.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/layout/base/nsDocumentViewer.cpp b/layout/base/nsDocumentViewer.cpp
index 8815f856a68a..3ef28eb3e7f7 100644
--- a/layout/base/nsDocumentViewer.cpp
+++ b/layout/base/nsDocumentViewer.cpp
@@ -1360,6 +1360,8 @@ DocumentViewerImpl::Open(nsISupports *aState, nsISHEntry *aSHEntry)
   nsresult rv = InitInternal(mParentWidget, aState, mBounds, PR_FALSE);
   NS_ENSURE_SUCCESS(rv, rv);
 
+  mHidden = PR_FALSE;
+
   if (mPresShell)
     mPresShell->SetForwardingContainer(nsnull);