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

chrome/browser/resources/options/browser_options.js

Index: chrome/browser/resources/options/browser_options.js
diff --git a/chrome/browser/resources/options/browser_options.js b/chrome/browser/resources/options/browser_options.js
index 41b0faebe6a4cbacde9b5444772fd95d33f6df0a..a1ceb1fc37f5631c25d03c328a69edfd8f92a983 100644
--- a/chrome/browser/resources/options/browser_options.js
+++ b/chrome/browser/resources/options/browser_options.js
@@ -194,7 +194,7 @@ cr.define('options', function() {
         $('advanced-settings').hidden = true;
       }
 
-      $('advanced-settings').addEventListener('webkitTransitionEnd',
+      $('advanced-settings').addEventListener('transitionend',
           this.updateAdvancedSettingsExpander_.bind(this));
 
       if (loadTimeData.valueExists('aboutOverlayTabTitle')) {
@@ -936,7 +936,7 @@ cr.define('options', function() {
       // If the section is already animating, dispatch a synthetic transition
       // end event as the upcoming code will cancel the current one.
       if (section.classList.contains('sliding'))
-        cr.dispatchSimpleEvent(section, 'webkitTransitionEnd');
+        cr.dispatchSimpleEvent(section, 'transitionend');
 
       this.addTransitionEndListener_(section);
 
@@ -1060,7 +1060,7 @@ cr.define('options', function() {
     },
 
     /**
-     * Adds a |webkitTransitionEnd| listener to the given section so that
+     * Adds a |transitionend| listener to the given section so that
      * it can be animated. The listener will only be added to a given section
      * once, so this can be called as multiple times.
      * @param {HTMLElement} section The section to be animated.
@@ -1070,14 +1070,14 @@ cr.define('options', function() {
       if (section.hasTransitionEndListener_)
         return;
 
-      section.addEventListener('webkitTransitionEnd',
+      section.addEventListener('transitionend',
           this.onTransitionEnd_.bind(this));
       section.hasTransitionEndListener_ = true;
     },
 
     /**
      * Called after an animation transition has ended.
-     * @param {Event} event The webkitTransitionEnd event. NOTE: May be
+     * @param {Event} event The transitionend event. NOTE: May be
      *     synthetic.
      * @private
      */