Site Settings Desktop: Fix bug with deleting manually added exceptions.

chrome/browser/resources/settings/site_settings/site_details.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
  * 'site-details' show the details (permissions and usage) for a given origin
  * under Site Settings.
  */
 Polymer({
@@ skipping 71 matching lines @@
       this.onClearStorage_();
     else
       this.navigateBackIfNoData_();
   },
 
   /**
    * Navigate back if the UI is empty (everything been cleared).
    */
   navigateBackIfNoData_: function() {
     if (this.storedData_ == '' && !this.permissionShowing_())
-      settings.navigateTo(settings.Route.SITE_SETTINGS_ALL);
+      settings.navigateToPreviousRoute();
   },
 
   /**
    * Returns true if one or more permission is showing.
    */
   permissionShowing_: function() {
     return Array.prototype.some.call(
         this.root.querySelectorAll('site-details-permission'),
         function(element) { return element.offsetHeight > 0; });
   },
 });