diff --git a/mozilla/embedding/browser/webBrowser/nsDocShellTreeOwner.cpp b/mozilla/embedding/browser/webBrowser/nsDocShellTreeOwner.cpp
index b3c762b2ba4..82d967ee8bc 100644
--- a/mozilla/embedding/browser/webBrowser/nsDocShellTreeOwner.cpp
+++ b/mozilla/embedding/browser/webBrowser/nsDocShellTreeOwner.cpp
@@ -68,7 +68,6 @@
 #include "nsIPrompt.h"
 #include "nsRect.h"
 #include "nsIWebBrowserChromeFocus.h"
-#include "nsIDragDropOverride.h"
 #include "nsIContent.h"
 #include "imgIContainer.h"
 #include "nsContextMenuInfo.h"
@@ -843,11 +842,8 @@ nsDocShellTreeOwner :: AddChromeListeners ( )
     if ( mChromeDragHandler ) {
       nsCOMPtr<nsIDOMEventReceiver> rcvr;
       GetEventReceiver(mWebBrowser, getter_AddRefs(rcvr));
-      nsCOMPtr<nsIOverrideDragSource> srcOverride ( do_QueryInterface(mWebBrowserChrome) );
-      nsCOMPtr<nsIOverrideDropSite> siteOverride ( do_QueryInterface(mWebBrowserChrome) );
       nsCOMPtr<nsIDOMEventTarget> rcvrTarget(do_QueryInterface(rcvr));
-      mChromeDragHandler->HookupTo(rcvrTarget, NS_STATIC_CAST(nsIWebNavigation*, mWebBrowser),
-                                    srcOverride, siteOverride);
+      mChromeDragHandler->HookupTo(rcvrTarget, NS_STATIC_CAST(nsIWebNavigation*, mWebBrowser));
     }
   }