Remove webkit prefixes for CSS Animation in ui/ styles

ui/file_manager/video_player/js/media_controls.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.
 
 /**
  * @fileoverview MediaControls class implements media playback controls
  * that exist outside of the audio/video HTML element.
  */
 
 /**
@@ skipping 1020 matching lines @@
   var stateIcon = this.stateIcon_;
   stateIcon.removeAttribute('state');
 
   setTimeout(function() {
     var newState = this.isPlaying() ? 'play' : 'pause';
 
     var onAnimationEnd = function(state, event) {
       if (stateIcon.getAttribute('state') === state)
         stateIcon.removeAttribute('state');
 
-      stateIcon.removeEventListener('webkitAnimationEnd', onAnimationEnd);
+      stateIcon.removeEventListener('animationend', onAnimationEnd);
     }.bind(null, newState);
-    stateIcon.addEventListener('webkitAnimationEnd', onAnimationEnd);
+    stateIcon.addEventListener('animationend', onAnimationEnd);
 
     // Shows the icon with animation.
     stateIcon.setAttribute('state', newState);
   }.bind(this), 0);
 };
 
 /**
  * Shows a text banner.
  *
  * @param {string} identifier String identifier.
  * @private
  */
 VideoControls.prototype.showTextBanner_ = function(identifier) {
   this.textBanner_.removeAttribute('visible');
   this.textBanner_.textContent = str(identifier);
 
   setTimeout(function() {
     var onAnimationEnd = function(event) {
       this.textBanner_.removeEventListener(
-          'webkitAnimationEnd', onAnimationEnd);
+          'animationend', onAnimationEnd);
       this.textBanner_.removeAttribute('visible');
     }.bind(this);
-    this.textBanner_.addEventListener('webkitAnimationEnd', onAnimationEnd);
+    this.textBanner_.addEventListener('animationend', onAnimationEnd);
 
     this.textBanner_.setAttribute('visible', 'true');
   }.bind(this), 0);
 };
 
 /**
  * @override
  */
 VideoControls.prototype.onPlayButtonClicked = function(event) {
   if (event.ctrlKey) {
@@ skipping 120 matching lines @@
     this.fullscreenButton_.setAttribute('aria-label',
         fullscreen ? str('VIDEO_PLAYER_EXIT_FULL_SCREEN_BUTTON_LABEL')
                    : str('VIDEO_PLAYER_FULL_SCREEN_BUTTON_LABEL'));;
     // If the fullscreen button has focus on entering fullscreen mode, reset the
     // focus to make the spacebar toggle play/pause state. This is the
     // consistent behavior with Youtube Web UI.
     if (fullscreen)
       this.fullscreenButton_.blur();
   }
 };