diff --git a/mozilla/netwerk/protocol/http/public/nsIHTTPEventSink.idl b/mozilla/netwerk/protocol/http/public/nsIHTTPEventSink.idl
new file mode 100644
index 00000000000..566bc0094ef
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+++ b/mozilla/netwerk/protocol/http/public/nsIHTTPEventSink.idl
@@ -0,0 +1,39 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ */
+
+#include "nsISupports.idl"
+interface nsIURI;
+
+[scriptable, uuid(e5cf0c64-1dd1-11b2-b704-c889f2be4793)]
+interface nsIHTTPEventSink : nsISupports
+{
+    /**
+      * Fired when all the headers have been parsed and are ready
+      * for a consumer to use. 
+      */
+    void onHeadersAvailable(in nsISupports i_Context);
+
+    /**
+      * Fired when a redirect occurs due to a HTTP response (like 302)
+      */
+    void onRedirect(in nsISupports i_Context, in nsIURI i_NewLocation);
+};