Teach CQ status app to check login status of users.

appengine/chromium_cq_status/js/patch_status.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.
 
 var patchStatusModule = (function() {
 
 var attemptStart = 'patch_start';
 var attemptEnd = 'patch_stop';
 
 var container = null;
@@ skipping 116 matching lines @@
 function main() {
   init();
   container.textContent = 'Loading patch data...';
   loadPatchsetRecords(function(records) {
     displayAttempts(records);
     scrollToHash();
   });
 }
 
 function loadPatchsetRecords(callback) {
-  var url = '//chromium-cq-status.appspot.com/query/codereview_hostname=' +
+  var url = '//' + window.location.host + '/query/codereview_hostname=' +
       codereview_hostname + '/issue=' + issue + '/patchset=' + patchset;
   var records = [];
   var moreRecords = true;
   function queryRecords(cursor) {
     var xhr = new XMLHttpRequest();
     xhr.open('get', url + (cursor ? '?cursor=' + encodeURIComponent(cursor) : ''), true);
     xhr.onreadystatechange = function() {
       if (xhr.readyState === XMLHttpRequest.DONE) {
         response = JSON.parse(xhr.responseText);
         records = records.concat(response.results);
@@ skipping 309 matching lines @@
 }
 
 return {
   'main': main,
   'init': init,
   'displayAttempts': displayAttempts,
   'document': currentDocument,
 };
 
 })();