Settings Router Refactor: Remove subpage-back.

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

 // Copyright 2015 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
  * 'settings-internet-detail' is the settings subpage containing details
  * for a network.
  */
 (function() {
@@ skipping 109 matching lines @@
   },
 
   /** @override */
   detached: function() {
     this.networkingPrivate.onNetworksChanged.removeListener(
         this.networksChangedListener_);
   },
 
   /** @private */
   close_: function() {
-    // Delay sending subpage-back until the next render frame to allow other
-    // subpages to load first.
-    setTimeout(function() {
-      this.fire('subpage-back');
-    }.bind(this));
+    // Delay navigating until the next render frame to allow other subpages to
+    // load first.
+    setTimeout(function() { settings.navigateTo(settings.Route.INTERNET) });
   },
 
   /** @private */
   guidChanged_: function() {
     if (!this.guid)
       this.close_();
     this.getNetworkDetails_();
   },
 
   /** @private */
@@ skipping 606 matching lines @@
    */
   allPropertiesMatch_: function(curValue, newValue) {
     for (let key in newValue) {
       if (newValue[key] != curValue[key])
         return false;
     }
     return true;
   }
 });
 })();