MD Settings: Internet: Hide add connection UI when WiFi is disabled

chrome/browser/resources/settings/internet_page/internet_subpage.js

 // Copyright 2017 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 information about WiFi,
  * WiMAX, or virtual networks.
  */
 
 /** @typedef {chrome.networkingPrivate.DeviceStateProperties} */
@@ skipping 269 matching lines @@
 
   /**
    * @param {!DeviceStateProperties} deviceState
    * @param {!chrome.networkingPrivate.GlobalPolicy} globalPolicy
    * @return {boolean}
    * @private
    */
   showAddButton_: function(deviceState, globalPolicy) {
     if (!deviceState || deviceState.Type != CrOnc.Type.WI_FI)
       return false;
+    if (!this.deviceIsEnabled_(deviceState))
+      return false;
     return this.allowAddConnection_(globalPolicy);
   },
 
   /** @private */
   onAddButtonTap_: function() {
     chrome.send('addNetwork', [this.deviceState.Type]);
   },
 
   /**
    * @param {!{model:
@@ skipping 120 matching lines @@
 
   /**
    * @param {*} lhs
    * @param {*} rhs
    * @return {boolean}
    */
   isEqual_: function(lhs, rhs) {
     return lhs === rhs;
   },
 });