diff --git a/mozilla/layout/html/document/src/nsIWebFrame.h b/mozilla/layout/html/document/src/nsIWebFrame.h
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+++ b/mozilla/layout/html/document/src/nsIWebFrame.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#ifndef nsIWebFrame_h___
+#define nsIWebFrame_h___
+
+#include "nsCom.h"
+#include "nsISupports.h"
+#include "nsIWebWidget.h"
+
+// IID for the nsIWebFrame interface.
+// XXX this was generated by hand. regenerate it.
+#define NS_IWEBFRAME_IID      \
+ { 0x02606880, 0x94e1, 0x11d1, \
+   {0x88, 0x4c, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
+
+/**
+ * Interface used for distinguishing frames that have web widgets associated
+ * with them (i.e. <iframe>, <frame>)
+ */
+class nsIWebFrame : public nsISupports {
+public:
+  /**
+    * Get the associated web widget and increment the ref count.
+    */
+  virtual nsIWebWidget* GetWebWidget() = 0;
+};
+
+
+#endif /* nsIWebWidget_h___ */