Only show prefer network checkbox for networks stored on user profile.

chrome/browser/resources/options/chromeos/internet_options.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('options', function() {
   var OptionsPage = options.OptionsPage;
   const ArrayDataModel = cr.ui.ArrayDataModel;
 
   /////////////////////////////////////////////////////////////////////////////
   // InternetOptions class:
@@ skipping 505 matching lines @@
     }
     if (data.type == options.internet.Constants.TYPE_WIFI) {
       OptionsPage.showTab($('wifiNetworkNavTab'));
       detailsPage.wireless = true;
       detailsPage.vpn = false;
       detailsPage.ethernet = false;
       detailsPage.cellular = false;
       detailsPage.gsm = false;
       detailsPage.shared = data.shared;
       $('inetSsid').textContent = data.ssid;
+      detailsPage.showPreferred = data.showPreferred;
       $('preferNetworkWifi').checked = data.preferred;
       $('preferNetworkWifi').disabled = !data.remembered;
       $('autoConnectNetworkWifi').checked = data.autoConnect;
       $('autoConnectNetworkWifi').disabled = !data.remembered;
       detailsPage.password = data.encrypted;
     } else if(data.type == options.internet.Constants.TYPE_CELLULAR) {
       if (!data.gsm)
         OptionsPage.showTab($('cellularPlanNavTab'));
       else
         OptionsPage.showTab($('cellularConnNavTab'));
@@ skipping 124 matching lines @@
     // Don't show page name in address bar and in history to prevent people
     // navigate here by hand and solve issue with page session restore.
     OptionsPage.showPageByName('detailsInternetPage', false);
   };
 
   // Export
   return {
     InternetOptions: InternetOptions
   };
 });