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diff --git a/contexts/data/lib/closure-library/closure/goog/testing/events/eventobserver.js b/contexts/data/lib/closure-library/closure/goog/testing/events/eventobserver.js
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@@ -1,86 +0,0 @@
-// Copyright 2010 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 Event observer.
- *
- * Provides an event observer that holds onto events that it handles. This
- * can be used in unit testing to verify an event target's events --
- * that the order count, types, etc. are correct.
- *
- * Example usage:
- * <pre>
- * var observer = new goog.testing.events.EventObserver();
- * var widget = new foo.Widget();
- * goog.events.listen(widget, ['select', 'submit'], observer);
- * // Simulate user action of 3 select events and 2 submit events.
- * assertEquals(3, observer.getEvents('select').length);
- * assertEquals(2, observer.getEvents('submit').length);
- * </pre>
- *
- * @author nnaze@google.com (Nathan Naze)
- */
-
-goog.provide('goog.testing.events.EventObserver');
-
-goog.require('goog.array');
-
-
-
-/**
- * Event observer. Implements a handleEvent interface so it may be used as
- * a listener in listening functions and methods.
- * @see goog.events.listen
- * @see goog.events.EventHandler
- * @constructor
- */
-goog.testing.events.EventObserver = function() {
-
- /**
- * A list of events handled by the observer in order of handling, oldest to
- * newest.
- * @type {!Array.<!goog.events.Event>}
- * @private
- */
- this.events_ = [];
-};
-
-
-/**
- * Handles an event and remembers it. Event listening functions and methods
- * will call this method when this observer is used as a listener.
- * @see goog.events.listen
- * @see goog.events.EventHandler
- * @param {!goog.events.Event} e Event to handle.
- */
-goog.testing.events.EventObserver.prototype.handleEvent = function(e) {
- this.events_.push(e);
-};
-
-
-/**
- * @param {string=} opt_type If given, only return events of this type.
- * @return {!Array.<!goog.events.Event>} The events handled, oldest to newest.
- */
-goog.testing.events.EventObserver.prototype.getEvents = function(opt_type) {
- var events = goog.array.clone(this.events_);
-
- if (opt_type) {
- events = goog.array.filter(events, function(event) {
- return event.type == opt_type;
- });
- }
-
- return events;
-};