Settings Router Refactor: Clean up Quick Unlock (and a few misc fixes)

chrome/browser/resources/settings/appearance_page/appearance_page.js

 // Copyright 2015 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.
 
 /**
  * 'settings-appearance-page' is the settings page containing appearance
  * settings.
  *
  * Example:
  *
@@ skipping 172 matching lines @@
   },
 </if>
 
   /** @private */
   resetTheme_: function() {
     this.browserProxy_.resetTheme();
   },
 
   /** @private */
   showFontsPage_: function() {
-    return this.currentRoute.subpage[0] == 'appearance-fonts';
+    return this.currentRoute == settings.Route.FONTS;
   },
 
   /**
    * @param {string} themeId The theme ID.
    * @private
    */
   themeChanged_: function(themeId) {
     if (themeId) {
       chrome.management.get(themeId,
           function(info) {
@@ skipping 25 matching lines @@
 
   /**
    * @param {boolean} bookmarksBarVisible if bookmarks bar option is visible.
    * @return {string} 'first' if the argument is false or empty otherwise.
    * @private
    */
   getFirst_: function(bookmarksBarVisible) {
     return !bookmarksBarVisible ? 'first' : '';
   }
 });