Remove webkit prefixes for transform and perspective in chrome/ styles

chrome/browser/resources/ntp4/tile_page.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.
 
 cr.define('ntp', function() {
   'use strict';
 
   // We can't pass the currently dragging tile via dataTransfer because of
   // http://crbug.com/31037
   var currentlyDraggingTile = null;
@@ skipping 220 matching lines @@
       for (var i = 0; i < clonelets.length; i++) {
         clonelets[i].classList.remove('real');
       }
 
       this.appendChild(clone);
       this.doppleganger_ = clone;
 
       if (isRTL())
         x *= -1;
 
-      this.doppleganger_.style.WebkitTransform = 'translate(' + x + 'px, ' +
-                                                                y + 'px)';
+      this.doppleganger_.style.transform = 'translate(' + x + 'px, ' +
+                                                          y + 'px)';
     },
 
     /**
      * Destroys the current doppleganger.
      */
     clearDoppleganger: function() {
       if (this.doppleganger_) {
         this.removeChild(this.doppleganger_);
         this.doppleganger_ = null;
       }
@@ skipping 1062 matching lines @@
   };
 
   return {
     getCurrentlyDraggingTile: getCurrentlyDraggingTile,
     setCurrentDropEffect: setCurrentDropEffect,
     // Not used outside, just for usage in JSDoc inside this file.
     Tile: Tile,
     TilePage: TilePage,
   };
 });