IDBObserver: Lifetime Management: Adding Observer

third_party/WebKit/LayoutTests/storage/indexeddb/resources/observer.js

 if (this.importScripts) {
     importScripts('../../../resources/testharness.js');
 }
 
 function callback(){};
 
 async_test(function(t) {
     var description = 'observers constructor test';
     var dbname = location.pathname + ' - ' + description;
     var openRequest = indexedDB.open(dbname);
     var obs1 = new IDBObserver(callback, {transaction: true, values: true});
+    var obs2 = new IDBObserver(callback, {transaction: true, values: true});
+
     openRequest.onupgradeneeded = t.step_func(function() {
         var db = openRequest.result;
         db.createObjectStore('store');
     });
     openRequest.onsuccess = t.step_func(function() {
         var db = openRequest.result;
         var tx = db.transaction('store', 'readwrite');
         obs1.observe(db, tx);
+        obs1.observe(db, tx);
+        obs2.observe(db, tx);
+
         t.done();
     });
 
 }, 'observers constructor test');
 
 done();