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diff --git a/contexts/data/lib/closure-library/closure/goog/ui/emoji/emojipalette.js b/contexts/data/lib/closure-library/closure/goog/ui/emoji/emojipalette.js
deleted file mode 100644
index 91e8e72..0000000
--- a/contexts/data/lib/closure-library/closure/goog/ui/emoji/emojipalette.js
+++ /dev/null
@@ -1,289 +0,0 @@
-// Copyright 2007 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 Emoji Palette implementation. This provides a UI widget for
- * choosing an emoji from a palette of possible choices. EmojiPalettes are
- * contained within EmojiPickers.
- *
- * See ../demos/popupemojipicker.html for an example of how to instantiate
- * an emoji picker.
- *
- * Based on goog.ui.ColorPicker (colorpicker.js).
- *
- */
-
-goog.provide('goog.ui.emoji.EmojiPalette');
-
-goog.require('goog.events.Event');
-goog.require('goog.events.EventType');
-goog.require('goog.net.ImageLoader');
-goog.require('goog.ui.Palette');
-goog.require('goog.ui.emoji.Emoji');
-goog.require('goog.ui.emoji.EmojiPaletteRenderer');
-
-
-
-/**
- * A page of emoji to be displayed in an EmojiPicker.
- *
- * @param {Array.<Array>} emoji List of emoji for this page.
-  * @param {?string=} opt_urlPrefix Prefix that should be prepended to all URL.
- * @param {goog.ui.PaletteRenderer=} opt_renderer Renderer used to render or
- *     decorate the palette; defaults to {@link goog.ui.PaletteRenderer}.
- * @param {goog.dom.DomHelper=} opt_domHelper Optional DOM helper.
- * @extends {goog.ui.Palette}
- * @constructor
- */
-goog.ui.emoji.EmojiPalette = function(emoji,
-                                      opt_urlPrefix,
-                                      opt_renderer,
-                                      opt_domHelper) {
-  goog.ui.Palette.call(this,
-                       null,
-                       opt_renderer ||
-                       new goog.ui.emoji.EmojiPaletteRenderer(null),
-                       opt_domHelper);
-  /**
-   * All the different emoji that this palette can display. Maps emoji ids
-   * (string) to the goog.ui.emoji.Emoji for that id.
-   *
-   * @type {Object}
-   * @private
-   */
-  this.emojiCells_ = {};
-
-  /**
-   * Map of emoji id to index into this.emojiCells_.
-   *
-   * @type {Object}
-   * @private
-   */
-  this.emojiMap_ = {};
-
-  /**
-   * List of the animated emoji in this palette. Each internal array is of type
-   * [HTMLDivElement, goog.ui.emoji.Emoji], and represents the palette item
-   * for that animated emoji, and the Emoji object.
-   *
-   * @type {Array.<Array.<(HTMLDivElement|goog.ui.emoji.Emoji)>>}
-   * @private
-   */
-  this.animatedEmoji_ = [];
-
-  this.urlPrefix_ = opt_urlPrefix || '';
-
-  /**
-   * Palette items that are displayed on this page of the emoji picker. Each
-   * item is a div wrapped around a div or an img.
-   *
-   * @type {Array.<HTMLDivElement>}
-   * @private
-   */
-  this.emoji_ = this.getEmojiArrayFromProperties_(emoji);
-
-  this.setContent(this.emoji_);
-};
-goog.inherits(goog.ui.emoji.EmojiPalette, goog.ui.Palette);
-
-
-/**
- * Indicates a prefix that should be prepended to all URLs of images in this
- * emojipalette. This provides an optimization if the URLs are long, so that
- * the client does not have to send a long string for each emoji.
- *
- * @type {string}
- * @private
- */
-goog.ui.emoji.EmojiPalette.prototype.urlPrefix_ = '';
-
-
-/**
- * Whether the emoji images have been loaded.
- *
- * @type {boolean}
- * @private
- */
-goog.ui.emoji.EmojiPalette.prototype.imagesLoaded_ = false;
-
-
-/**
- * Image loader for loading animated emoji.
- *
- * @type {goog.net.ImageLoader}
- * @private
- */
-goog.ui.emoji.EmojiPalette.prototype.imageLoader_;
-
-
-/**
- * Helps create an array of emoji palette items from an array of emoji
- * properties. Each element will be either a div with background-image set to
- * a sprite, or an img element pointing directly to an emoji, and all elements
- * are wrapped with an outer div for alignment issues (i.e., this allows
- * centering the inner div).
- *
- * @param {Object} emojiGroup The group of emoji for this page.
- * @return {Array.<HTMLDivElement>} The emoji items.
- * @private
- */
-goog.ui.emoji.EmojiPalette.prototype.getEmojiArrayFromProperties_ =
-    function(emojiGroup) {
-  var emojiItems = [];
-
-  for (var i = 0; i < emojiGroup.length; i++) {
-    var url = emojiGroup[i][0];
-    var id = emojiGroup[i][1];
-    var spriteInfo = emojiGroup[i][2];
-    var displayUrl = spriteInfo ? spriteInfo.getUrl() :
-                     this.urlPrefix_ + url;
-
-    var item = this.getRenderer().createPaletteItem(
-        this.getDomHelper(), id, spriteInfo, displayUrl);
-    emojiItems.push(item);
-
-    var emoji = new goog.ui.emoji.Emoji(url, id);
-    this.emojiCells_[id] = emoji;
-    this.emojiMap_[id] = i;
-
-    // Keep track of sprited emoji that are animated, for later loading.
-    if (spriteInfo && spriteInfo.isAnimated()) {
-      this.animatedEmoji_.push([item, emoji]);
-    }
-  }
-
-  // Create the image loader now so that tests can access it before it has
-  // started loading images.
-  if (this.animatedEmoji_.length > 0) {
-    this.imageLoader_ = new goog.net.ImageLoader();
-  }
-
-  this.imagesLoaded_ = true;
-  return emojiItems;
-};
-
-
-/**
- * Sends off requests for all the animated emoji and replaces their static
- * sprites when the images are done downloading.
- */
-goog.ui.emoji.EmojiPalette.prototype.loadAnimatedEmoji = function() {
-  if (this.animatedEmoji_.length > 0) {
-    for (var i = 0; i < this.animatedEmoji_.length; i++) {
-      var paletteItem = /** @type {Element} */ (this.animatedEmoji_[i][0]);
-      var emoji =
-          /** @type {goog.ui.emoji.Emoji} */ (this.animatedEmoji_[i][1]);
-      var url = this.urlPrefix_ + emoji.getUrl();
-
-      this.imageLoader_.addImage(emoji.getId(), url);
-    }
-
-    this.getHandler().listen(this.imageLoader_, goog.events.EventType.LOAD,
-        this.handleImageLoad_);
-    this.imageLoader_.start();
-  }
-};
-
-
-/**
- * Handles image load events from the ImageLoader.
- *
- * @param {goog.events.Event} e The event object.
- * @private
- */
-goog.ui.emoji.EmojiPalette.prototype.handleImageLoad_ = function(e) {
-  var id = e.target.id;
-  var url = e.target.src;
-  // Just to be safe, we check to make sure we have an id and src url from
-  // the event target, which the ImageLoader sets to an Image object.
-  if (id && url) {
-    var item = this.emoji_[this.emojiMap_[id]];
-    if (item) {
-      this.getRenderer().updateAnimatedPaletteItem(item, e.target);
-    }
-  }
-};
-
-
-/**
- * Returns the image loader that this palette uses. Used for testing.
- *
- * @return {goog.net.ImageLoader} the image loader.
- */
-goog.ui.emoji.EmojiPalette.prototype.getImageLoader = function() {
-  return this.imageLoader_;
-};
-
-
-/** @override */
-goog.ui.emoji.EmojiPalette.prototype.disposeInternal = function() {
-  goog.ui.emoji.EmojiPalette.superClass_.disposeInternal.call(this);
-
-  if (this.imageLoader_) {
-    this.imageLoader_.dispose();
-    this.imageLoader_ = null;
-  }
-  this.animatedEmoji_ = null;
-  this.emojiCells_ = null;
-  this.emojiMap_ = null;
-  this.emoji_ = null;
-};
-
-
-/**
- * Returns a goomoji id from an img or the containing td, or null if none
- * exists for that element.
- *
- * @param {Element} el The element to get the Goomoji id from.
- * @return {?string} A goomoji id from an img or the containing td, or null if
- *     none exists for that element.
- * @private
- */
-goog.ui.emoji.EmojiPalette.prototype.getGoomojiIdFromElement_ = function(el) {
-  if (!el) {
-    return null;
-  }
-
-  var item = this.getRenderer().getContainingItem(this, el);
-  return item ? item.getAttribute(goog.ui.emoji.Emoji.ATTRIBUTE) : null;
-};
-
-
-/**
- * @return {goog.ui.emoji.Emoji} The currently selected emoji from this palette.
- */
-goog.ui.emoji.EmojiPalette.prototype.getSelectedEmoji = function() {
-  var elem = /** @type {Element} */ (this.getSelectedItem());
-  var goomojiId = this.getGoomojiIdFromElement_(elem);
-  return this.emojiCells_[goomojiId];
-};
-
-
-/**
- * @return {number} The number of emoji managed by this palette.
- */
-goog.ui.emoji.EmojiPalette.prototype.getNumberOfEmoji = function() {
-  return this.emojiCells_.length;
-};
-
-
-/**
- * Returns the index of the specified emoji within this palette.
- *
- * @param {string} id Id of the emoji to look up.
- * @return {number} The index of the specified emoji within this palette.
- */
-goog.ui.emoji.EmojiPalette.prototype.getEmojiIndex = function(id) {
-  return this.emojiMap_[id];
-};