Print Preview: Changing the structure of the html/css.

chrome/browser/resources/print_preview/copies_settings.js

 // Copyright (c) 2011 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';
 
   /**
    * Creates a CopiesSettings object.
    * @constructor
@@ skipping 143 matching lines @@
                                 this.updateButtonsState_.bind(this));
       document.addEventListener('printerCapabilitiesUpdated',
                                 this.onPrinterCapabilitiesUpdated_.bind(this));
     },
 
     /**
      * Listener triggered when a printerCapabilitiesUpdated event occurs.
      * @private
      */
     onPrinterCapabilitiesUpdated_: function(e) {
-      if (e.printerCapabilities.disableCopiesOption) {
-        fadeOutElement(this.copiesOption_);
-        $('hr-before-copies').classList.remove('invisible');
-      } else {
-        fadeInElement(this.copiesOption_);
-        $('hr-before-copies').classList.add('invisible');
-      }
+      e.printerCapabilities.disableCopiesOption ?
+          fadeOutOption(this.copiesOption_) :
+          fadeInOption(this.copiesOption_);
+
       this.updateTwoSidedOption_(
           e.printerCapabilities.printerDefaultDuplexValue);
     },
 
     /**
      * Listener triggered when |incrementButton_| is clicked.
      * @private
      */
     onIncrementButtonClicked_: function() {
       this.onButtonClicked_(1);
@@ skipping 57 matching lines @@
         fadeOutElement(this.hint_);
       }
       this.hint_.setAttribute('aria-hidden', this.isValid());
     }
   };
 
   return {
     CopiesSettings: CopiesSettings,
   };
 });