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diff --git a/contexts/data/lib/closure-library/closure/goog/events/focushandler.js b/contexts/data/lib/closure-library/closure/goog/events/focushandler.js
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index 8a13e86..0000000
--- a/contexts/data/lib/closure-library/closure/goog/events/focushandler.js
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@@ -1,106 +0,0 @@
-// Copyright 2006 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview This event handler allows you to catch focusin and focusout
- * events on descendants. Unlike the "focus" and "blur" events which do not
- * propagate consistently, and therefore must be added to the element that is
- * focused, this allows you to attach one listener to an ancester and you will
- * be notified when the focus state changes of ony of its descendants.
- * @author arv@google.com (Erik Arvidsson)
- * @see ../demos/focushandler.html
- */
-
-goog.provide('goog.events.FocusHandler');
-goog.provide('goog.events.FocusHandler.EventType');
-
-goog.require('goog.events');
-goog.require('goog.events.BrowserEvent');
-goog.require('goog.events.EventTarget');
-goog.require('goog.userAgent');
-
-
-
-/**
- * This event handler allows you to catch focus events when descendants gain or
- * loses focus.
- * @param {Element|Document} element The node to listen on.
- * @constructor
- * @extends {goog.events.EventTarget}
- */
-goog.events.FocusHandler = function(element) {
- goog.events.EventTarget.call(this);
-
- /**
- * This is the element that we will listen to the real focus events on.
- * @type {Element|Document}
- * @private
- */
- this.element_ = element;
-
- // In IE we use focusin/focusout and in other browsers we use a capturing
- // listner for focus/blur
- var typeIn = goog.userAgent.IE ? 'focusin' : 'focus';
- var typeOut = goog.userAgent.IE ? 'focusout' : 'blur';
-
- /**
- * Store the listen key so it easier to unlisten in dispose.
- * @private
- * @type {number}
- */
- this.listenKeyIn_ = (/** @type {number} */
- goog.events.listen(this.element_, typeIn, this, !goog.userAgent.IE));
-
- /**
- * Store the listen key so it easier to unlisten in dispose.
- * @private
- * @type {number}
- */
- this.listenKeyOut_ = (/** @type {number} */
- goog.events.listen(this.element_, typeOut, this, !goog.userAgent.IE));
-};
-goog.inherits(goog.events.FocusHandler, goog.events.EventTarget);
-
-
-/**
- * Enum type for the events fired by the focus handler
- * @enum {string}
- */
-goog.events.FocusHandler.EventType = {
- FOCUSIN: 'focusin',
- FOCUSOUT: 'focusout'
-};
-
-
-/**
- * This handles the underlying events and dispatches a new event.
- * @param {goog.events.BrowserEvent} e The underlying browser event.
- */
-goog.events.FocusHandler.prototype.handleEvent = function(e) {
- var be = e.getBrowserEvent();
- var event = new goog.events.BrowserEvent(be);
- event.type = e.type == 'focusin' || e.type == 'focus' ?
- goog.events.FocusHandler.EventType.FOCUSIN :
- goog.events.FocusHandler.EventType.FOCUSOUT;
- this.dispatchEvent(event);
-};
-
-
-/** @override */
-goog.events.FocusHandler.prototype.disposeInternal = function() {
- goog.events.FocusHandler.superClass_.disposeInternal.call(this);
- goog.events.unlistenByKey(this.listenKeyIn_);
- goog.events.unlistenByKey(this.listenKeyOut_);
- delete this.element_;
-};