diff -r 000000000000 -r 6474c204b198 dom/webidl/IDBKeyRange.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/IDBKeyRange.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+/* 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/. */
+/*
+ * The origin of this IDL file is
+ * https://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+interface IDBKeyRange {
+  [Throws]
+  readonly attribute any     lower;
+  [Throws]
+  readonly attribute any     upper;
+  [Constant]
+  readonly attribute boolean lowerOpen;
+  [Constant]
+  readonly attribute boolean upperOpen;
+  [NewObject, Throws]
+  static IDBKeyRange only (any value);
+  [NewObject, Throws]
+  static IDBKeyRange lowerBound (any lower, optional boolean open = false);
+  [NewObject, Throws]
+  static IDBKeyRange upperBound (any upper, optional boolean open = false);
+  [NewObject, Throws]
+  static IDBKeyRange bound (any lower, any upper, optional boolean lowerOpen = false, optional boolean upperOpen = false);
+};