Add getGlobalPolicy to networkingPrivate API.

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 296 matching lines @@
         {'networkType': chrome.networkingPrivate.NetworkType.ALL,
          'visible': true},
         onVisibleNetworksReceived);
     chrome.networkingPrivate.getNetworks(
         {'networkType': chrome.networkingPrivate.NetworkType.ALL,
          '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 =

[Devlin, 2017/01/10 15:25:21]

Why document.querySelector('#foo') instead of $('foo')?

[stevenjb, 2017/01/10 17:49:39]

No particular reason, I just copied from somewhere that used
document.querySelector, and I forgot about $ (which we don't use much in Polymer
code).

[Devlin, 2017/01/10 18:43:06]

AFAIK, we still use $ liberally.  It's also shorter, cleaner, and probably
faster (since we don't have to parse the selector string - we know it's an id
from the get-go).

[stevenjb, 2017/01/10 18:58:29]

I didn't mean to suggest that $ wasn't. We also however use
querySelector('#foo') liberally, so I kind of took this as a nit.

+          JSON.stringify(policy);
+    });
+  };
+
+  /**
    * 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);
   };
 
   /**
    * Gets network information from WebUI and sets custom items.
    */
   document.addEventListener('DOMContentLoaded', function() {
     let select = document.querySelector('cr-network-select');
     select.customItems = [
       {customItemName: 'Add WiFi', polymerIcon: 'cr:add', customData: 'WiFi'},
       {customItemName: 'Add VPN', polymerIcon: 'cr:add', customData: 'VPN'}
     ];
     $('refresh').onclick = requestNetworks;
     setRefresh();
     requestNetworks();
+    requestGlobalPolicy();
   });
 
   document.addEventListener('custom-item-selected', function(event) {
     chrome.send('addNetwork', [event.detail.customData]);
   });
 
   return {
     getShillPropertiesResult: getShillPropertiesResult
   };
 })();