Settings/Oobe: Simplify cr-network-select and use flex

chrome/browser/resources/chromeos/network_ui/network_ui.js

 // Copyright 2013 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.
 
 var NetworkUI = (function() {
   'use strict';
 
   // Properties to display in the network state table. Each entry can be either
   // a single state field or an array of state fields. If more than one is
   // specified then the first non empty value is used.
@@ skipping 301 matching lines @@
          'configured': true},
         onFavoriteNetworksReceived);
   };
 
   /**
    * Requests the global policy dictionary and updates the page.
    */
   var requestGlobalPolicy = function() {
     chrome.networkingPrivate.getGlobalPolicy(function(policy) {
       document.querySelector('#global-policy').textContent =
-          JSON.stringify(policy);
+          JSON.stringify(policy, null, '\t');
     });
   };
 
   /**
    * Sets refresh rate if the interval is found in the url.
    */
   var setRefresh = function() {
     var interval = parseQueryParams(window.location)['refresh'];
     if (interval && interval != '')
       setInterval(requestNetworks, parseInt(interval, 10) * 1000);
@@ skipping 15 matching lines @@
   });
 
   document.addEventListener('custom-item-selected', function(event) {
     chrome.send('addNetwork', [event.detail.customData]);
   });
 
   return {
     getShillPropertiesResult: getShillPropertiesResult
   };
 })();