diff -r 000000000000 -r 6474c204b198 layout/inspector/inIDeepTreeWalker.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/inspector/inIDeepTreeWalker.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIDOMTreeWalker.idl"
+
+interface nsIDOMNode;
+
+[scriptable, uuid(91FCA0E9-99D6-406b-9D78-4C96F11E9EE4)]
+interface inIDeepTreeWalker : nsIDOMTreeWalker
+{
+  attribute boolean showAnonymousContent;
+  attribute boolean showSubDocuments;
+  
+  void init(in nsIDOMNode aRoot, in unsigned long aWhatToShow);
+};
+