IndexedDB: Specify reason when aborting due to quota

content/test/data/indexeddb/quota_test.js

 // Copyright (c) 2012 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.
 
 function test() {
   if (window.webkitStorageInfo) {
     window.jsTestIsAsync = true;
     webkitStorageInfo.queryUsageAndQuota(webkitStorageInfo.TEMPORARY,
                                          initUsageCallback,
                                          unexpectedErrorCallback);
@@ skipping 70 matching lines @@
   dataAdded += dataLength;
   debug("We've added "+ displaySize(dataAdded));
   returnedUsage = usage;
   returnedQuota = quota;
   debug("Allotted quota is " + displaySize(returnedQuota));
   debug("LevelDB usage is " + displaySize(returnedUsage));
   startNewTransaction();
 }
 
 function onAbort() {
+  shouldBeEqualToString("event.target.error.name", "QuotaExceededError");
   done("Transaction aborted. Data added: " + displaySize(dataAdded));
   debug("There were " + successfulWrites + " successful writes");
 }
 
 function logError() {
   debug("Error function called: (" + event.target.errorCode + ") " +
         event.target.webkitErrorMessage);
   event.preventDefault();
 }