From 6a1dc5a5761f97f84fdb0e136e018341bba05e90 Mon Sep 17 00:00:00 2001
From: "bzbarsky%mit.edu"
 <bzbarsky%mit.edu@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Tue, 18 Jul 2006 19:35:41 +0000
Subject: [PATCH] Remove the same way we added.  Bug 343643, patch by Mikhail
 Zabaluev <mhz@altlinux.org>, r+sr=bzbarsky

git-svn-id: svn://10.0.0.236/trunk@203012 18797224-902f-48f8-a5cc-f745e15eee43
---
 .../components/commandhandler/src/nsCommandManager.cpp         | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mozilla/embedding/components/commandhandler/src/nsCommandManager.cpp b/mozilla/embedding/components/commandhandler/src/nsCommandManager.cpp
index ef0efacd1be..8d2da9fed59 100644
--- a/mozilla/embedding/components/commandhandler/src/nsCommandManager.cpp
+++ b/mozilla/embedding/components/commandhandler/src/nsCommandManager.cpp
@@ -174,7 +174,8 @@ nsCommandManager::RemoveCommandObserver(nsIObserver *aCommandObserver, const cha
 	if (!commandObservers)
 	  return NS_ERROR_UNEXPECTED;
 	
-	nsresult removed = commandObservers->RemoveElement(aCommandObserver);
+	nsCOMPtr<nsISupports> observerAsSupports = do_QueryInterface(aCommandObserver);
+	nsresult removed = commandObservers->RemoveElement(observerAsSupports);
 	return (removed) ? NS_OK : NS_ERROR_FAILURE;
 }