Print Preview UI tweaks

chrome/browser/resources/print_preview/settings/more_settings.js

 // Copyright 2014 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';
 
   /**
    * Toggles visibility of the specified printing options sections.
    * @param {!Array.<print_preview.SettingsSection>} settingsSections Sections
@@ skipping 56 matching lines @@
      * @private
      */
     updateState_: function() {
       var all = this.settingsToShow_ == MoreSettings.SettingsToShow.ALL;
       this.getChildElement('.more-settings-label').textContent =
           localStrings.getString(all ? 'lessOptionsLabel' : 'moreOptionsLabel');
       var iconEl = this.getChildElement('.more-settings-icon');
       iconEl.classList.toggle('more-settings-icon-plus', !all);
       iconEl.classList.toggle('more-settings-icon-minus', all);
 
-      var hasSectionsToToggle = this.settingsSections_.some(function(section) {
-        return section.hasCollapsibleContent();
-      });
+      var availableSections = this.settingsSections_.reduce(
+          function(count, section) {
+            return count + (section.isAvailable() ? 1 : 0);
+          }, 0);
+
+      // Magic 6 is chosen as the number of sections when it still feels like
+      // manageable and not too crowded.
+      var hasSectionsToToggle =
+          availableSections > 6 &&
+          this.settingsSections_.some(function(section) {
+            return section.hasCollapsibleContent();
+          });
 
       if (hasSectionsToToggle)
         fadeInElement(this.getElement());
       else
         fadeOutElement(this.getElement());
 
       var collapseContent =
           this.settingsToShow_ == MoreSettings.SettingsToShow.MOST_POPULAR &&
           hasSectionsToToggle;
       this.settingsSections_.forEach(function(section) {
         section.collapseContent = collapseContent;
       });
     }
   };
 
   // Export
   return {
     MoreSettings: MoreSettings
   };
 });