MD WebUI: Networking polish in OOBE and Settings

chrome/browser/resources/chromeos/login/oobe_welcome.js

 // Copyright 2016 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.
 
 /**
  * @fileoverview Polymer element for displaying material design OOBE.
  */
 
 Polymer({
   is: 'oobe-welcome-md',
@@ skipping 89 matching lines @@
       value: [],
     },
 
     /**
      * If UI uses forced keyboard navigation.
      */
     highlightStrength: {
       type: String,
       value: '',
     },
+
+    /**
+     * True when connected to a network.
+     * @private
+     */
+    isConnected_: {
+      type: Boolean,
+      value: false,
+    }
   },
 
   /** @override */
   ready: function() {
     CrOncStrings = {
       OncTypeCellular: loadTimeData.getString('OncTypeCellular'),
       OncTypeEthernet: loadTimeData.getString('OncTypeEthernet'),
       OncTypeVPN: loadTimeData.getString('OncTypeVPN'),
       OncTypeWiFi: loadTimeData.getString('OncTypeWiFi'),
       OncTypeWiMAX: loadTimeData.getString('OncTypeWiMAX'),
@@ skipping 169 matching lines @@
   /**
    * This is called when network setup is done.
    *
    * @private
    */
   onSelectedNetworkConnected_: function() {
     chrome.send('login.NetworkScreen.userActed', ['continue']);
   },
 
   /**
-   * This gets called when a network enters the 'Connected' state.
-   *
-   * @param {!{detail: !CrOnc.NetworkStateProperties}} event
+   * This gets called whenever the default network changes.
+   * @param {!{detail: ?CrOnc.NetworkStateProperties}} event
    * @private
    */
-  onNetworkConnected_: function(event) {
+  onDefaultNetworkChanged_: function(event) {
     var state = event.detail;
-    if (state.GUID != this.networkLastSelectedGuid_)
+    this.isConnected_ =
+        !!state && state.ConnectionState == CrOnc.ConnectionState.CONNECTED;
+    if (!state || state.GUID != this.networkLastSelectedGuid_)
       return;
 
     // Duplicate asynchronous event may be delivered to some other screen,
     // so disable it.
     this.networkLastSelectedGuid_ = '';
     this.onSelectedNetworkConnected_();
   },
 
   /**
    * This is called when user taps on network entry in networks list.
@@ skipping 132 matching lines @@
    * @private
    */
   onTimezoneSelected_: function(event) {
     var item = event.detail;
     if (!item)
       return;
 
     this.screen.onTimezoneSelected_(item.value);
   },
 });