Remove webkit prefixes for CSS Animation in chrome/ styles

chrome/test/data/webui/print_preview.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.
 
 GEN('#include "base/feature_list.h"');
 GEN('#include "chrome/common/chrome_features.h"');
 
 /**
  * Test fixture for print preview WebUI testing.
  * @constructor
@@ skipping 142 matching lines @@
     capsSetEvent.settingsInfo = device;
     this.nativeLayer_.dispatchEvent(capsSetEvent);
   },
 
   /**
    * Even though animation duration and delay is set to zero, it is necessary to
    * wait until the animation has finished.
    */
   waitForAnimationToEnd: function(elementId) {
     // add a listener for the animation end event
-    document.addEventListener('webkitAnimationEnd', function f(e) {
+    document.addEventListener('animationend', function f(e) {
       if (e.target.id == elementId) {
-        document.removeEventListener(f, 'webkitAnimationEnd');
+        document.removeEventListener(f, 'animationend');
         testDone();
       }
     });
   },
 
   /**
    * Expand the 'More Settings' div to expose all options.
    */
   expandMoreSettings: function() {
     var moreSettings = $('more-settings');
@@ skipping 1135 matching lines @@
   // increments by 1 for each startGetPreview call it makes. It should only
   // make one such call during initialization or there will be a race; see
   // crbug.com/666595
   expectEquals(printPreview.previewArea_.previewGenerator_.inFlightRequestId_,
     -1);
   this.setInitialSettings();
   expectEquals(printPreview.previewArea_.previewGenerator_.inFlightRequestId_,
     0);
   testDone();
 });