Reduce webkit CSS prefixes in ui/ styles

ui/webui/resources/js/util.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // <include src="assert.js">
 
 /**
  * Alias for document.getElementById. Found elements must be HTMLElements.
  * @param {string} id The ID of the element to find.
  * @return {HTMLElement} The found element or null if not found.
@@ skipping 272 matching lines @@
  * @param {string} className The class name to use.
  * @return {Element} The created element.
  */
 function createElementWithClassName(type, className) {
   var elm = document.createElement(type);
   elm.className = className;
   return elm;
 }
 
 /**
- * webkitTransitionEnd does not always fire (e.g. when animation is aborted
+ * transitionend does not always fire (e.g. when animation is aborted
  * or when no paint happens during the animation). This function sets up
  * a timer and emulate the event if it is not fired when the timer expires.
- * @param {!HTMLElement} el The element to watch for webkitTransitionEnd.
+ * @param {!HTMLElement} el The element to watch for transitionend.
  * @param {number=} opt_timeOut The maximum wait time in milliseconds for the
- *     webkitTransitionEnd to happen. If not specified, it is fetched from |el|
+ *     transitionend to happen. If not specified, it is fetched from |el|
  *     using the transitionDuration style value.
  */
 function ensureTransitionEndEvent(el, opt_timeOut) {
   if (opt_timeOut === undefined) {
     var style = getComputedStyle(el);
     opt_timeOut = parseFloat(style.transitionDuration) * 1000;
 
     // Give an additional 50ms buffer for the animation to complete.
     opt_timeOut += 50;
   }
 
   var fired = false;
-  el.addEventListener('webkitTransitionEnd', function f(e) {
-    el.removeEventListener('webkitTransitionEnd', f);
+  el.addEventListener('transitionend', function f(e) {
+    el.removeEventListener('transitionend', f);
     fired = true;
   });
   window.setTimeout(function() {
     if (!fired)
-      cr.dispatchSimpleEvent(el, 'webkitTransitionEnd', true);
+      cr.dispatchSimpleEvent(el, 'transitionend', true);
   }, opt_timeOut);
 }
 
 /**
  * Alias for document.scrollTop getter.
  * @param {!HTMLDocument} doc The document node where information will be
  *     queried from.
  * @return {number} The Y document scroll offset.
  */
 function scrollTopForDocument(doc) {
@@ skipping 165 matching lines @@
  * @param {!Array<string>} moduleNames
  * @return {!Promise}
  */
 function importModules(moduleNames) {
   return new Promise(function(resolve) {
     define(moduleNames, function() {
       resolve(Array.from(arguments));
     });
   });
 }