Construct URLs from the url field when sorting site engagement by origin.

chrome/browser/resources/engagement/site_engagement.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.
 
 'use strict';
 
 define('main', [
     'mojo/public/js/connection',
     'chrome/browser/ui/webui/engagement/site_engagement.mojom',
     'content/public/renderer/frame_service_registry',
@@ skipping 111 matching lines @@
      * @param {string} sortKey The name of the property to sort by.
      * @return {number} A negative number if |a| should be ordered before |b|, a
      * positive number otherwise.
      */
     function compareTableItem(sortKey, a, b) {
       var val1 = a[sortKey];
       var val2 = b[sortKey];
 
       // Compare the hosts of the origin ignoring schemes.
       if (sortKey == 'origin')
-        return new URL(val1).host > new URL(val2).host ? 1 : -1;
+        return new URL(val1.url).host > new URL(val2.url).host ? 1 : -1;
 
       if (sortKey == 'score')
         return val1 - val2;
 
       assertNotReached('Unsupported sort key: ' + sortKey);
       return 0;
     }
 
     /**
      * Regenerates the engagement table from |info|.
@@ skipping 16 matching lines @@
       uiHandler.getSiteEngagementInfo().then(function(response) {
         info = response.info;
         renderTable(info);
       });
     };
 
     updateEngagementTable();
     enableAutoupdate();
   };
 });