Adding policy support to the new network configuration stack.

chrome/browser/resources/chromeos/network_configuration/js/network_status.js

 // Copyright (c) 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.
 
 cr.define('network.status', function() {
   var ArrayDataModel = cr.ui.ArrayDataModel;
   var List = cr.ui.List;
   var ListItem = cr.ui.ListItem;
   var ListSingleSelectionModel = cr.ui.ListSingleSelectionModel;
 
@@ skipping 19 matching lines @@
    * @return {Array.<Array.<T>>} .
    */
   function differenceBy(a, b, toKey) {
     var inA = {};
     a.forEach(function(elA) {
       inA[toKey(elA)] = elA;
     });
     var bMinusA = [];
     b.forEach(function(elB) {
       var keyB = toKey(elB);
-      if (inA[keyB]) {
+      if (inA[keyB])
         delete inA[keyB];
-      } else {
+      else
         bMinusA.push(elB);
-      }
     });
     var aMinusB = [];
     for (var keyA in inA) {
       aMinusB.push(inA[keyA]);
     }
     return [aMinusB, bMinusA];
   }
 
   /**
    * Updates the data model of |uiList| to |newList|. Ensures that unchanged
@@ skipping 512 matching lines @@
      */
     getTechnologyButtonForType_: function(networkType) {
       var buttons = this.items;
       for (var i = 0; i < buttons.length; i++) {
         var button = buttons[i];
         if (button instanceof TechnologyButton &&
             button.technology === networkType) {
           return button;
         }
       }
+      console.log('TechnologyButton for type ' + networkType +
+          ' requested but not found.');
       return null;
     },
 
     updateTechnologiesFromNetworks_: function() {
       var newTechnologies = {};
       Object.keys(this.networkIDsByType_).forEach(function(technology) {
         newTechnologies[technology] = true;
       });
       this.technologies_ = newTechnologies;
     },
@@ skipping 26 matching lines @@
      */
     onNetworkListChanged_: function(networkIDs) {
       var diff = differenceBy(Object.keys(this.networkByID_),
                               networkIDs,
                               function(e) { return e; });
       var toRemove = diff[0];
       var toAdd = diff[1];
 
       var addCallback = this.addNetworkCallback_.bind(this);
       toAdd.forEach(function(id) {
+        console.log('NetworkStatus: Network ' + id + ' added.');
         chrome.networkingPrivate.getProperties(id, addCallback);
       });
 
       toRemove.forEach(function(id) {
+        console.log('NetworkStatus: Network ' + id + ' removed.');
         delete this.networkByID_[id];
       }, this);
 
       this.updateIndexes_(networkIDs);
       this.updateDataStructuresAndButtons_();
     },
 
     /**
      * @param {Array.<string>} networkIDs .
      */
     onNetworksChanged_: function(networkIDs) {
       var updateCallback = this.updateNetworkCallback_.bind(this);
       networkIDs.forEach(function(id) {
+        console.log('NetworkStatus: Network ' + id + ' changed.');
         chrome.networkingPrivate.getProperties(id, updateCallback);
       });
     },
 
     /**
      * @param {Object} network .
      */
     updateNetworkCallback_: function(network) {
       this.networkByID_[network.GUID] = network;
       this.getTechnologyButtonForType_(network.Type).update();
@@ skipping 34 matching lines @@
       chrome.networkingPrivate.getVisibleNetworks(
           'All',
           this.setVisibleNetworks.bind(this));
     }
   };
 
   return {
     NetworkStatusList: NetworkStatusList
   };
 });