Reduce usage of webkit CSS prefixes in chrome/browser/resources

chrome/browser/resources/local_ntp/most_visited_single.js

 /* Copyright 2015 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. */
 
  // Single iframe for NTP tiles.
 (function() {
 'use strict';
 
 
 /**
@@ skipping 242 matching lines @@
 
   // Only fade in the new tiles if there were tiles before.
   var fadeIn = false;
   var old = parent.querySelector('#mv-tiles');
   if (old) {
     fadeIn = true;
     // Mark old tile DIV for removal after the transition animation is done.
     old.removeAttribute('id');
     old.classList.add('mv-tiles-old');
     old.style.opacity = 0.0;
-    cur.addEventListener('webkitTransitionEnd', function(ev) {
+    cur.addEventListener('transitionend', function(ev) {
       if (ev.target === cur) {
         removeAllOldTiles();
       }
     });
   }
 
   // Add new tileset.
   cur.id = 'mv-tiles';
   parent.appendChild(cur);
   // getComputedStyle causes the initial style (opacity 0) to be applied, so
@@ skipping 48 matching lines @@
 };
 
 /**
  * Called when the user decided to add a tile to the blacklist.
  * It sets of the animation for the blacklist and sends the blacklisted id
  * to the host page.
  * @param {Element} tile DOM node of the tile we want to remove.
  */
 var blacklistTile = function(tile) {
   tile.classList.add('blacklisted');
-  tile.addEventListener('webkitTransitionEnd', function(ev) {
+  tile.addEventListener('transitionend', function(ev) {
     if (ev.propertyName != 'width') return;
 
     window.parent.postMessage({cmd: 'tileBlacklisted',
                                tid: Number(tile.getAttribute('data-tid'))},
                               DOMAIN_ORIGIN);
   });
 };
 
 
 /**
@@ skipping 263 matching lines @@
     var html = document.querySelector('html');
     html.dir = 'rtl';
   }
 
   window.addEventListener('message', handlePostMessage);
 };
 
 
 window.addEventListener('DOMContentLoaded', init);
 })();