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diff --git a/tools/addon-sdk-1.4/packages/addon-kit/lib/hotkeys.js b/tools/addon-sdk-1.4/packages/addon-kit/lib/hotkeys.js
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--- a/tools/addon-sdk-1.4/packages/addon-kit/lib/hotkeys.js
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@@ -1,71 +0,0 @@
-/* vim:set ts=2 sw=2 sts=2 et: */
-/* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla 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/MPL/
- *
- * 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 Jetpack.
- *
- * The Initial Developer of the Original Code is
- * the Mozilla Foundation.
- * Portions created by the Initial Developer are Copyright (C) 2011
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Irakli Gozalishvili <gozala@mozilla.com> (Original Author)
- * Henri Wiechers <hwiechers@gmail.com>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-"use strict";
-
-const INVALID_HOTKEY = "Hotkey must have at least one modifier.";
-
-const { toJSON: jsonify, toString: stringify,
- isFunctionKey } = require("api-utils/keyboard/utils");
-const { register, unregister } = require("api-utils/keyboard/hotkeys");
-
-const Hotkey = exports.Hotkey = function Hotkey(options) {
- if (!(this instanceof Hotkey))
- return new Hotkey(options);
-
- // Parsing key combination string.
- let hotkey = jsonify(options.combo);
- if (!isFunctionKey(hotkey.key) && !hotkey.modifiers.length) {
- throw new TypeError(INVALID_HOTKEY);
- }
-
- this.onPress = options.onPress;
- this.toString = stringify.bind(null, hotkey);
- // Registering listener on keyboard combination enclosed by this hotkey.
- // Please note that `this.toString()` is a normalized version of
- // `options.combination` where order of modifiers is sorted and `accel` is
- // replaced with platform specific key.
- register(this.toString(), this.onPress);
- // We freeze instance before returning it in order to make it's properties
- // read-only.
- return Object.freeze(this);
-};
-Hotkey.prototype.destroy = function destroy() {
- unregister(this.toString(), this.onPress);
-};