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

chrome/browser/resources/print_preview/previewarea/margin_control.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('print_preview', function() {
   'use strict';
 
   /**
    * Draggable control for setting a page margin.
    * @param {!print_preview.ticket_items.CustomMargins.Orientation} orientation
@@ skipping 307 matching lines @@
           MarginControl.Classes_.LINE)[0];
     },
 
     /** @override */
     enterDocument: function() {
       print_preview.Component.prototype.enterDocument.call(this);
       this.tracker.add(
           this.getElement(), 'mousedown', this.onMouseDown_.bind(this));
       this.tracker.add(
           this.getElement(),
-          'webkitTransitionEnd',
-          this.onWebkitTransitionEnd_.bind(this));
+          'transitionend',
+          this.onTransitionEnd_.bind(this));
       this.tracker.add(
           this.textbox_, 'input', this.onTextboxInput_.bind(this));
       this.tracker.add(
           this.textbox_, 'keydown', this.onTextboxKeyDown_.bind(this));
       this.tracker.add(
           this.textbox_, 'focus', this.setIsFocused_.bind(this, true));
       this.tracker.add(this.textbox_, 'blur', this.onTexboxBlur_.bind(this));
     },
 
     /** @override */
@@ skipping 36 matching lines @@
             new print_preview.Coordinate2d(event.x, event.y);
         this.marginStartPositionInPixels_ = new print_preview.Coordinate2d(
             this.getElement().offsetLeft, this.getElement().offsetTop);
         this.setIsInError(false);
         cr.dispatchSimpleEvent(this, MarginControl.EventType.DRAG_START);
       }
     },
 
     /**
      * Called when opacity CSS transition ends.
+     * @param {Event} event The event that triggered this listener.
      * @private
      */
-    onWebkitTransitionEnd_: function(event) {
+    onTransitionEnd_: function(event) {
       if (event.propertyName != 'opacity')
         return;
       var elStyle = window.getComputedStyle(this.getElement());
       var disabled = parseInt(elStyle.getPropertyValue('opacity'), 10) == 0;
       this.textbox_.setAttribute('aria-hidden', disabled);
       this.textbox_.disabled = disabled;
     },
 
     /**
      * Called when textbox content changes. Starts text change timeout.
@@ skipping 45 matching lines @@
       this.setIsFocused_(false);
       cr.dispatchSimpleEvent(this, MarginControl.EventType.TEXT_CHANGE);
     }
   };
 
   // Export
   return {
     MarginControl: MarginControl
   };
 });