diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-includes/js/tinymce/utils/form_utils.js
--- a/wp/wp-includes/js/tinymce/utils/form_utils.js	Tue Jun 09 11:14:17 2015 +0000
+++ b/wp/wp-includes/js/tinymce/utils/form_utils.js	Mon Oct 14 17:39:30 2019 +0200
@@ -1,8 +1,8 @@
 /**
  * form_utils.js
  *
- * Copyright, Moxiecode Systems AB
  * Released under LGPL License.
+ * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
  *
  * License: http://www.tinymce.com/license
  * Contributing: http://www.tinymce.com/contributing
@@ -11,200 +11,212 @@
 var themeBaseURL = tinyMCEPopup.editor.baseURI.toAbsolute('themes/' + tinyMCEPopup.getParam("theme"));
 
 function getColorPickerHTML(id, target_form_element) {
-	var h = "", dom = tinyMCEPopup.dom;
+  var h = "", dom = tinyMCEPopup.dom;
 
-	if (label = dom.select('label[for=' + target_form_element + ']')[0]) {
-		label.id = label.id || dom.uniqueId();
-	}
+  if (label = dom.select('label[for=' + target_form_element + ']')[0]) {
+    label.id = label.id || dom.uniqueId();
+  }
 
-	h += '<a role="button" aria-labelledby="' + id + '_label" id="' + id + '_link" href="javascript:;" onclick="tinyMCEPopup.pickColor(event,\'' + target_form_element +'\');" onmousedown="return false;" class="pickcolor">';
-	h += '<span id="' + id + '" title="' + tinyMCEPopup.getLang('browse') + '">&nbsp;<span id="' + id + '_label" class="mceVoiceLabel mceIconOnly" style="display:none;">' + tinyMCEPopup.getLang('browse') + '</span></span></a>';
+  h += '<a role="button" aria-labelledby="' + id + '_label" id="' + id + '_link" href="javascript:;" onclick="tinyMCEPopup.pickColor(event,\'' + target_form_element + '\');" onmousedown="return false;" class="pickcolor">';
+  h += '<span id="' + id + '" title="' + tinyMCEPopup.getLang('browse') + '">&nbsp;<span id="' + id + '_label" class="mceVoiceLabel mceIconOnly" style="display:none;">' + tinyMCEPopup.getLang('browse') + '</span></span></a>';
 
-	return h;
+  return h;
 }
 
 function updateColor(img_id, form_element_id) {
-	document.getElementById(img_id).style.backgroundColor = document.forms[0].elements[form_element_id].value;
+  document.getElementById(img_id).style.backgroundColor = document.forms[0].elements[form_element_id].value;
 }
 
 function setBrowserDisabled(id, state) {
-	var img = document.getElementById(id);
-	var lnk = document.getElementById(id + "_link");
+  var img = document.getElementById(id);
+  var lnk = document.getElementById(id + "_link");
 
-	if (lnk) {
-		if (state) {
-			lnk.setAttribute("realhref", lnk.getAttribute("href"));
-			lnk.removeAttribute("href");
-			tinyMCEPopup.dom.addClass(img, 'disabled');
-		} else {
-			if (lnk.getAttribute("realhref"))
-				lnk.setAttribute("href", lnk.getAttribute("realhref"));
+  if (lnk) {
+    if (state) {
+      lnk.setAttribute("realhref", lnk.getAttribute("href"));
+      lnk.removeAttribute("href");
+      tinyMCEPopup.dom.addClass(img, 'disabled');
+    } else {
+      if (lnk.getAttribute("realhref")) {
+        lnk.setAttribute("href", lnk.getAttribute("realhref"));
+      }
 
-			tinyMCEPopup.dom.removeClass(img, 'disabled');
-		}
-	}
+      tinyMCEPopup.dom.removeClass(img, 'disabled');
+    }
+  }
 }
 
 function getBrowserHTML(id, target_form_element, type, prefix) {
-	var option = prefix + "_" + type + "_browser_callback", cb, html;
+  var option = prefix + "_" + type + "_browser_callback", cb, html;
 
-	cb = tinyMCEPopup.getParam(option, tinyMCEPopup.getParam("file_browser_callback"));
+  cb = tinyMCEPopup.getParam(option, tinyMCEPopup.getParam("file_browser_callback"));
 
-	if (!cb)
-		return "";
+  if (!cb) {
+    return "";
+  }
 
-	html = "";
-	html += '<a id="' + id + '_link" href="javascript:openBrowser(\'' + id + '\',\'' + target_form_element + '\', \'' + type + '\',\'' + option + '\');" onmousedown="return false;" class="browse">';
-	html += '<span id="' + id + '" title="' + tinyMCEPopup.getLang('browse') + '">&nbsp;</span></a>';
+  html = "";
+  html += '<a id="' + id + '_link" href="javascript:openBrowser(\'' + id + '\',\'' + target_form_element + '\', \'' + type + '\',\'' + option + '\');" onmousedown="return false;" class="browse">';
+  html += '<span id="' + id + '" title="' + tinyMCEPopup.getLang('browse') + '">&nbsp;</span></a>';
 
-	return html;
+  return html;
 }
 
 function openBrowser(img_id, target_form_element, type, option) {
-	var img = document.getElementById(img_id);
+  var img = document.getElementById(img_id);
 
-	if (img.className != "mceButtonDisabled")
-		tinyMCEPopup.openBrowser(target_form_element, type, option);
+  if (img.className != "mceButtonDisabled") {
+    tinyMCEPopup.openBrowser(target_form_element, type, option);
+  }
 }
 
 function selectByValue(form_obj, field_name, value, add_custom, ignore_case) {
-	if (!form_obj || !form_obj.elements[field_name])
-		return;
-
-	if (!value)
-		value = "";
+  if (!form_obj || !form_obj.elements[field_name]) {
+    return;
+  }
 
-	var sel = form_obj.elements[field_name];
+  if (!value) {
+    value = "";
+  }
 
-	var found = false;
-	for (var i=0; i<sel.options.length; i++) {
-		var option = sel.options[i];
+  var sel = form_obj.elements[field_name];
+
+  var found = false;
+  for (var i = 0; i < sel.options.length; i++) {
+    var option = sel.options[i];
 
-		if (option.value == value || (ignore_case && option.value.toLowerCase() == value.toLowerCase())) {
-			option.selected = true;
-			found = true;
-		} else
-			option.selected = false;
-	}
+    if (option.value == value || (ignore_case && option.value.toLowerCase() == value.toLowerCase())) {
+      option.selected = true;
+      found = true;
+    } else {
+      option.selected = false;
+    }
+  }
 
-	if (!found && add_custom && value != '') {
-		var option = new Option(value, value);
-		option.selected = true;
-		sel.options[sel.options.length] = option;
-		sel.selectedIndex = sel.options.length - 1;
-	}
+  if (!found && add_custom && value != '') {
+    var option = new Option(value, value);
+    option.selected = true;
+    sel.options[sel.options.length] = option;
+    sel.selectedIndex = sel.options.length - 1;
+  }
 
-	return found;
+  return found;
 }
 
 function getSelectValue(form_obj, field_name) {
-	var elm = form_obj.elements[field_name];
+  var elm = form_obj.elements[field_name];
 
-	if (elm == null || elm.options == null || elm.selectedIndex === -1)
-		return "";
+  if (elm == null || elm.options == null || elm.selectedIndex === -1) {
+    return "";
+  }
 
-	return elm.options[elm.selectedIndex].value;
+  return elm.options[elm.selectedIndex].value;
 }
 
 function addSelectValue(form_obj, field_name, name, value) {
-	var s = form_obj.elements[field_name];
-	var o = new Option(name, value);
-	s.options[s.options.length] = o;
+  var s = form_obj.elements[field_name];
+  var o = new Option(name, value);
+  s.options[s.options.length] = o;
 }
 
 function addClassesToList(list_id, specific_option) {
-	// Setup class droplist
-	var styleSelectElm = document.getElementById(list_id);
-	var styles = tinyMCEPopup.getParam('theme_advanced_styles', false);
-	styles = tinyMCEPopup.getParam(specific_option, styles);
+  // Setup class droplist
+  var styleSelectElm = document.getElementById(list_id);
+  var styles = tinyMCEPopup.getParam('theme_advanced_styles', false);
+  styles = tinyMCEPopup.getParam(specific_option, styles);
 
-	if (styles) {
-		var stylesAr = styles.split(';');
+  if (styles) {
+    var stylesAr = styles.split(';');
 
-		for (var i=0; i<stylesAr.length; i++) {
-			if (stylesAr != "") {
-				var key, value;
+    for (var i = 0; i < stylesAr.length; i++) {
+      if (stylesAr != "") {
+        var key, value;
 
-				key = stylesAr[i].split('=')[0];
-				value = stylesAr[i].split('=')[1];
+        key = stylesAr[i].split('=')[0];
+        value = stylesAr[i].split('=')[1];
 
-				styleSelectElm.options[styleSelectElm.length] = new Option(key, value);
-			}
-		}
-	} else {
-		/*tinymce.each(tinyMCEPopup.editor.dom.getClasses(), function(o) {
-			styleSelectElm.options[styleSelectElm.length] = new Option(o.title || o['class'], o['class']);
-		});*/
-	}
+        styleSelectElm.options[styleSelectElm.length] = new Option(key, value);
+      }
+    }
+  } else {
+    /*tinymce.each(tinyMCEPopup.editor.dom.getClasses(), function(o) {
+    styleSelectElm.options[styleSelectElm.length] = new Option(o.title || o['class'], o['class']);
+    });*/
+  }
 }
 
 function isVisible(element_id) {
-	var elm = document.getElementById(element_id);
+  var elm = document.getElementById(element_id);
 
-	return elm && elm.style.display != "none";
+  return elm && elm.style.display != "none";
 }
 
 function convertRGBToHex(col) {
-	var re = new RegExp("rgb\\s*\\(\\s*([0-9]+).*,\\s*([0-9]+).*,\\s*([0-9]+).*\\)", "gi");
+  var re = new RegExp("rgb\\s*\\(\\s*([0-9]+).*,\\s*([0-9]+).*,\\s*([0-9]+).*\\)", "gi");
 
-	var rgb = col.replace(re, "$1,$2,$3").split(',');
-	if (rgb.length == 3) {
-		r = parseInt(rgb[0]).toString(16);
-		g = parseInt(rgb[1]).toString(16);
-		b = parseInt(rgb[2]).toString(16);
+  var rgb = col.replace(re, "$1,$2,$3").split(',');
+  if (rgb.length == 3) {
+    r = parseInt(rgb[0]).toString(16);
+    g = parseInt(rgb[1]).toString(16);
+    b = parseInt(rgb[2]).toString(16);
 
-		r = r.length == 1 ? '0' + r : r;
-		g = g.length == 1 ? '0' + g : g;
-		b = b.length == 1 ? '0' + b : b;
+    r = r.length == 1 ? '0' + r : r;
+    g = g.length == 1 ? '0' + g : g;
+    b = b.length == 1 ? '0' + b : b;
 
-		return "#" + r + g + b;
-	}
+    return "#" + r + g + b;
+  }
 
-	return col;
+  return col;
 }
 
 function convertHexToRGB(col) {
-	if (col.indexOf('#') != -1) {
-		col = col.replace(new RegExp('[^0-9A-F]', 'gi'), '');
+  if (col.indexOf('#') != -1) {
+    col = col.replace(new RegExp('[^0-9A-F]', 'gi'), '');
 
-		r = parseInt(col.substring(0, 2), 16);
-		g = parseInt(col.substring(2, 4), 16);
-		b = parseInt(col.substring(4, 6), 16);
+    r = parseInt(col.substring(0, 2), 16);
+    g = parseInt(col.substring(2, 4), 16);
+    b = parseInt(col.substring(4, 6), 16);
 
-		return "rgb(" + r + "," + g + "," + b + ")";
-	}
+    return "rgb(" + r + "," + g + "," + b + ")";
+  }
 
-	return col;
+  return col;
 }
 
 function trimSize(size) {
-	return size.replace(/([0-9\.]+)(px|%|in|cm|mm|em|ex|pt|pc)/i, '$1$2');
+  return size.replace(/([0-9\.]+)(px|%|in|cm|mm|em|ex|pt|pc)/i, '$1$2');
 }
 
 function getCSSSize(size) {
-	size = trimSize(size);
+  size = trimSize(size);
 
-	if (size == "")
-		return "";
+  if (size == "") {
+    return "";
+  }
 
-	// Add px
-	if (/^[0-9]+$/.test(size))
-		size += 'px';
-	// Sanity check, IE doesn't like broken values
-	else if (!(/^[0-9\.]+(px|%|in|cm|mm|em|ex|pt|pc)$/i.test(size)))
-		return "";
+  // Add px
+  if (/^[0-9]+$/.test(size)) {
+    size += 'px';
+  }
+  // Sanity check, IE doesn't like broken values
+  else if (!(/^[0-9\.]+(px|%|in|cm|mm|em|ex|pt|pc)$/i.test(size))) {
+    return "";
+  }
 
-	return size;
+  return size;
 }
 
 function getStyle(elm, attrib, style) {
-	var val = tinyMCEPopup.dom.getAttrib(elm, attrib);
+  var val = tinyMCEPopup.dom.getAttrib(elm, attrib);
 
-	if (val != '')
-		return '' + val;
+  if (val != '') {
+    return '' + val;
+  }
 
-	if (typeof(style) == 'undefined')
-		style = attrib;
+  if (typeof (style) == 'undefined') {
+    style = attrib;
+  }
 
-	return tinyMCEPopup.dom.getStyle(elm, style);
+  return tinyMCEPopup.dom.getStyle(elm, style);
 }