MD Settings: update a11y section

chrome/browser/resources/settings/advanced_page/advanced_page.html

 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
-<link rel="import" href="chrome://md-settings/a11y_page/a11y_page.html">
 <link rel="import" href="chrome://md-settings/downloads_page/downloads_page.html">
 <link rel="import" href="chrome://md-settings/languages_page/languages_page.html">
 <link rel="import" href="chrome://md-settings/location_page/location_page.html">
 <link rel="import" href="chrome://md-settings/privacy_page/privacy_page.html">
 <link rel="import" href="chrome://md-settings/settings_page/settings_section.html">
 <link rel="import" href="chrome://md-settings/sync_page/sync_page.html">
 
 <if expr="chromeos">
+<link rel="import" href="chrome://md-settings/a11y_page/a11y_page.html">
 <link rel="import" href="chrome://md-settings/date_time_page/date_time_page.html">
 </if>
 
 <dom-module id="cr-settings-advanced-page">
   <link rel="import" type="css" href="advanced_page.css">
   <template>
 <if expr="chromeos">
     <cr-settings-section i18n-values="page-title:dateTimePageTitle"
         expand-container="[[expandContainer]]"
         current-route="[[currentRoute]]" section="dateTime">
@@ skipping 24 matching lines @@
       </cr-settings-languages-page>
     </cr-settings-section>
 
     <cr-settings-section i18n-values="page-title:downloadsPageTitle"
         expand-container="[[expandContainer]]"
         current-route="[[currentRoute]]" section="downloads">
       <cr-settings-downloads-page prefs="{{prefs}}">
       </cr-settings-downloads-page>
     </cr-settings-section>
 
+<if expr="chromeos">
+    <!-- TODO(dbeam): find somewhere to stuff "Add more accessibility features"
+         on desktop. -->
     <cr-settings-section i18n-values="page-title:a11yPageTitle"

[michaelpg, 2015/09/29 03:10:20]

todo: make this route chrome-os-only. perhaps via something somewhat similar to
https://codereview.chromium.org/1374813003/diff/1/chrome/browser/resources/se...

[Dan Beam, 2015/09/29 03:39:25]

there's no route for this page yet

         expand-container="[[expandContainer]]"
         current-route="[[currentRoute]]" section="a11y">
       <cr-settings-a11y-page prefs="{{prefs}}"></cr-settings-a11y-page>
     </cr-settings-section>
+</if>
 
     <cr-settings-section i18n-values="page-title:syncPageTitle"
         expand-container="[[expandContainer]]"
         current-route="[[currentRoute]]" section="sync">
       <cr-settings-sync-page></cr-settings-sync-page>
     </cr-settings-section>
   </template>
   <script src="advanced_page.js"></script>
 </dom-module>