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diff --git a/contexts/data/lib/closure-library/closure/goog/editor/link.js b/contexts/data/lib/closure-library/closure/goog/editor/link.js
deleted file mode 100644
index 6d89a64..0000000
--- a/contexts/data/lib/closure-library/closure/goog/editor/link.js
+++ /dev/null
@@ -1,344 +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 A utility class for managing editable links.
- *
- * @author nicksantos@google.com (Nick Santos)
- */
-
-goog.provide('goog.editor.Link');
-
-goog.require('goog.array');
-goog.require('goog.dom');
-goog.require('goog.dom.NodeType');
-goog.require('goog.dom.Range');
-goog.require('goog.editor.BrowserFeature');
-goog.require('goog.editor.Command');
-goog.require('goog.editor.node');
-goog.require('goog.editor.range');
-goog.require('goog.string');
-goog.require('goog.string.Unicode');
-goog.require('goog.uri.utils');
-goog.require('goog.uri.utils.ComponentIndex');
-
-
-
-/**
- * Wrap an editable link.
- * @param {HTMLAnchorElement} anchor The anchor element.
- * @param {boolean} isNew Whether this is a new link.
- * @constructor
- */
-goog.editor.Link = function(anchor, isNew) {
-  /**
-   * The link DOM element.
-   * @type {HTMLAnchorElement}
-   * @private
-   */
-  this.anchor_ = anchor;
-
-  /**
-   * Whether this link represents a link just added to the document.
-   * @type {boolean}
-   * @private
-   */
-  this.isNew_ = isNew;
-
-
-  /**
-   * Any extra anchors created by the browser from a selection in the same
-   * operation that created the primary link
-   * @type {!Array.<HTMLAnchorElement>}
-   * @private
-   */
-  this.extraAnchors_ = [];
-};
-
-
-/**
- * @return {HTMLAnchorElement} The anchor element.
- */
-goog.editor.Link.prototype.getAnchor = function() {
-  return this.anchor_;
-};
-
-
-/**
- * @return {!Array.<HTMLAnchorElement>} The extra anchor elements, if any,
- *     created by the browser from a selection.
- */
-goog.editor.Link.prototype.getExtraAnchors = function() {
-  return this.extraAnchors_;
-};
-
-
-/**
- * @return {string} The inner text for the anchor.
- */
-goog.editor.Link.prototype.getCurrentText = function() {
-  if (!this.currentText_) {
-    this.currentText_ = goog.dom.getRawTextContent(this.getAnchor());
-  }
-  return this.currentText_;
-};
-
-
-/**
- * @return {boolean} Whether the link is new.
- */
-goog.editor.Link.prototype.isNew = function() {
-  return this.isNew_;
-};
-
-
-/**
- * Set the url without affecting the isNew() status of the link.
- * @param {string} url A URL.
- */
-goog.editor.Link.prototype.initializeUrl = function(url) {
-  this.getAnchor().href = url;
-};
-
-
-/**
- * Removes the link, leaving its contents in the document.  Note that this
- * object will no longer be usable/useful after this call.
- */
-goog.editor.Link.prototype.removeLink = function() {
-  goog.dom.flattenElement(this.anchor_);
-  this.anchor_ = null;
-  while (this.extraAnchors_.length) {
-    goog.dom.flattenElement(/** @type {Element} */(this.extraAnchors_.pop()));
-  }
-};
-
-
-/**
- * Change the link.
- * @param {string} newText New text for the link. If the link contains all its
- *     text in one descendent, newText will only replace the text in that
- *     one node. Otherwise, we'll change the innerHTML of the whole
- *     link to newText.
- * @param {string} newUrl A new URL.
- */
-goog.editor.Link.prototype.setTextAndUrl = function(newText, newUrl) {
-  var anchor = this.getAnchor();
-  anchor.href = newUrl;
-
-  // If the text did not change, don't update link text.
-  var currentText = this.getCurrentText();
-  if (newText != currentText) {
-    var leaf = goog.editor.node.getLeftMostLeaf(anchor);
-    if (leaf.nodeType == goog.dom.NodeType.TEXT) {
-      leaf = leaf.parentNode;
-    }
-
-    if (goog.dom.getRawTextContent(leaf) != currentText) {
-      leaf = anchor;
-    }
-
-    goog.dom.removeChildren(leaf);
-
-    var domHelper = goog.dom.getDomHelper(leaf);
-    goog.dom.appendChild(leaf, domHelper.createTextNode(newText));
-
-    // The text changed, so force getCurrentText to recompute.
-    this.currentText_ = null;
-  }
-
-  this.isNew_ = false;
-};
-
-
-/**
- * Places the cursor to the right of the anchor.
- * Note that this is different from goog.editor.range's placeCursorNextTo
- * in that it specifically handles the placement of a cursor in browsers
- * that trap you in links, by adding a space when necessary and placing the
- * cursor after that space.
- */
-goog.editor.Link.prototype.placeCursorRightOf = function() {
-  var anchor = this.getAnchor();
-  // If the browser gets stuck in a link if we place the cursor next to it,
-  // we'll place the cursor after a space instead.
-  if (goog.editor.BrowserFeature.GETS_STUCK_IN_LINKS) {
-    var spaceNode;
-    var nextSibling = anchor.nextSibling;
-
-    // Check if there is already a space after the link.  Only handle the
-    // simple case - the next node is a text node that starts with a space.
-    if (nextSibling &&
-        nextSibling.nodeType == goog.dom.NodeType.TEXT &&
-        (goog.string.startsWith(nextSibling.data, goog.string.Unicode.NBSP) ||
-         goog.string.startsWith(nextSibling.data, ' '))) {
-      spaceNode = nextSibling;
-    } else {
-      // If there isn't an obvious space to use, create one after the link.
-      var dh = goog.dom.getDomHelper(anchor);
-      spaceNode = dh.createTextNode(goog.string.Unicode.NBSP);
-      goog.dom.insertSiblingAfter(spaceNode, anchor);
-    }
-
-    // Move the selection after the space.
-    var range = goog.dom.Range.createCaret(spaceNode, 1);
-    range.select();
-  } else {
-    goog.editor.range.placeCursorNextTo(anchor, false);
-  }
-};
-
-
-/**
- * Updates the cursor position and link bubble for this link.
- * @param {goog.editor.Field} field The field in which the link is created.
- * @param {string} url The link url.
- * @private
- */
-goog.editor.Link.prototype.updateLinkDisplay_ = function(field, url) {
-  this.initializeUrl(url);
-  this.placeCursorRightOf();
-  field.execCommand(goog.editor.Command.UPDATE_LINK_BUBBLE);
-};
-
-
-/**
- * After link creation, finish creating the link depending on the type
- * of link being created.
- * @param {goog.editor.Field} field The field where this link is being created.
- */
-goog.editor.Link.prototype.finishLinkCreation = function(field) {
-  var text = this.getCurrentText();
-  if (goog.editor.Link.isLikelyUrl(text)) {
-    if (text.search(/:/) < 0) {
-      text = 'http://' + goog.string.trimLeft(text);
-    }
-    this.updateLinkDisplay_(field, text);
-  } else if (goog.editor.Link.isLikelyEmailAddress(text)) {
-    text = 'mailto:' + text;
-    this.updateLinkDisplay_(field, text);
-  } else {
-    field.execCommand(goog.editor.Command.MODAL_LINK_EDITOR, this);
-  }
-};
-
-
-/**
- * Initialize a new link.
- * @param {HTMLAnchorElement} anchor The anchor element.
- * @param {string} url The initial URL.
- * @param {string=} opt_target The target.
- * @param {Array.<HTMLAnchorElement>=} opt_extraAnchors Extra anchors created
- *     by the browser when parsing a selection.
- * @return {goog.editor.Link} The link.
- */
-goog.editor.Link.createNewLink = function(anchor, url, opt_target,
-    opt_extraAnchors) {
-  var link = new goog.editor.Link(anchor, true);
-  link.initializeUrl(url);
-
-  if (opt_target) {
-    anchor.target = opt_target;
-  }
-  if (opt_extraAnchors) {
-    link.extraAnchors_ = opt_extraAnchors;
-  }
-
-  return link;
-};
-
-
-/**
- * Returns true if str could be a URL, false otherwise
- *
- * Ex: TR_Util.isLikelyUrl_("http://www.google.com") == true
- *     TR_Util.isLikelyUrl_("www.google.com") == true
- *
- * @param {string} str String to check if it looks like a URL.
- * @return {boolean} Whether str could be a URL.
- */
-goog.editor.Link.isLikelyUrl = function(str) {
-  // Whitespace means this isn't a domain.
-  if (/\s/.test(str)) {
-    return false;
-  }
-
-  if (goog.editor.Link.isLikelyEmailAddress(str)) {
-    return false;
-  }
-
-  // Add a scheme if the url doesn't have one - this helps the parser.
-  var addedScheme = false;
-  if (!/^[^:\/?#.]+:/.test(str)) {
-    str = 'http://' + str;
-    addedScheme = true;
-  }
-
-  // Parse the domain.
-  var parts = goog.uri.utils.split(str);
-
-  // Relax the rules for special schemes.
-  var scheme = parts[goog.uri.utils.ComponentIndex.SCHEME];
-  if (goog.array.indexOf(['mailto', 'aim'], scheme) != -1) {
-    return true;
-  }
-
-  // Require domains to contain a '.', unless the domain is fully qualified.
-  var domain = parts[goog.uri.utils.ComponentIndex.DOMAIN];
-  if (!domain || (addedScheme && domain.indexOf('.') == -1)) {
-    return false;
-  }
-
-  // Require http and ftp paths to start with '/'.
-  var path = parts[goog.uri.utils.ComponentIndex.PATH];
-  return !path || path.indexOf('/') == 0;
-};
-
-
-/**
- * Regular expression that matches strings that could be an email address.
- * @type {RegExp}
- * @private
- */
-goog.editor.Link.LIKELY_EMAIL_ADDRESS_ = new RegExp(
-    '^' +                     // Test from start of string
-    '[\\w-]+(\\.[\\w-]+)*' +  // Dot-delimited alphanumerics and dashes (name)
-    '\\@' +                   // @
-    '([\\w-]+\\.)+' +         // Alphanumerics, dashes and dots (domain)
-    '(\\d+|\\w\\w+)$',        // Domain ends in at least one number or 2 letters
-    'i');
-
-
-/**
- * Returns true if str could be an email address, false otherwise
- *
- * Ex: goog.editor.Link.isLikelyEmailAddress_("some word") == false
- *     goog.editor.Link.isLikelyEmailAddress_("foo@foo.com") == true
- *
- * @param {string} str String to test for being email address.
- * @return {boolean} Whether "str" looks like an email address.
- */
-goog.editor.Link.isLikelyEmailAddress = function(str) {
-  return goog.editor.Link.LIKELY_EMAIL_ADDRESS_.test(str);
-};
-
-
-/**
- * Determines whether or not a url is an email link.
- * @param {string} url A url.
- * @return {boolean} Whether the url is a mailto link.
- */
-goog.editor.Link.isMailto = function(url) {
-  return !!url && goog.string.startsWith(url, 'mailto:');
-};