From 093e674c1ffab799c803a627cd5297cc8cae9b0b Mon Sep 17 00:00:00 2001
From: Olli Pettay <Olli.Pettay@helsinki.fi>
Date: Mon, 11 Jun 2012 00:45:09 +0300
Subject: [PATCH] Bug 763014 - crash in PresShell::HandleEventInternal, r=mats

---
 layout/base/nsPresShell.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/layout/base/nsPresShell.cpp b/layout/base/nsPresShell.cpp
index 2f34faf41f8..d4fbbe4e4eb 100644
--- a/layout/base/nsPresShell.cpp
+++ b/layout/base/nsPresShell.cpp
@@ -6408,8 +6408,10 @@ PresShell::HandleEventInternal(nsEvent* aEvent, nsEventStatus* aStatus)
         }
         else {
           nsCOMPtr<nsIContent> targetContent;
-          rv = mCurrentEventFrame->GetContentForEvent(aEvent,
-                                                      getter_AddRefs(targetContent));
+          if (mCurrentEventFrame) {
+            rv = mCurrentEventFrame->GetContentForEvent(aEvent,
+                                                        getter_AddRefs(targetContent));
+          }
           if (NS_SUCCEEDED(rv) && targetContent) {
             nsEventDispatcher::Dispatch(targetContent, mPresContext, aEvent,
                                         nsnull, aStatus, &eventCB);