Follow up to IDL roll.

sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart

 library dart.dom.indexed_db;
 
 import 'dart:async';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:_js_helper' show Creates, Returns, JSName, Null;
 import 'dart:_foreign_helper' show JS;
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
@@ skipping 216 matching lines @@
   @DomName('IDBDatabase.abortEvent')
   @DocsEditable
   static const EventStreamProvider<Event> abortEvent = const EventStreamProvider<Event>('abort');
 
   @DomName('IDBDatabase.errorEvent')
   @DocsEditable
   static const EventStreamProvider<Event> errorEvent = const EventStreamProvider<Event>('error');
 
   @DomName('IDBDatabase.versionchangeEvent')
   @DocsEditable
-  static const EventStreamProvider<UpgradeNeededEvent> versionChangeEvent = const EventStreamProvider<UpgradeNeededEvent>('versionchange');
+  static const EventStreamProvider<VersionChangeEvent> versionChangeEvent = const EventStreamProvider<VersionChangeEvent>('versionchange');
 
   @DocsEditable
   @DomName('EventTarget.addEventListener, EventTarget.removeEventListener, EventTarget.dispatchEvent')
   @deprecated
   DatabaseEvents get on =>
     new DatabaseEvents(this);
 
   @DomName('IDBDatabase.name')
   @DocsEditable
   final String name;
@@ skipping 49 matching lines @@
   @DomName('IDBDatabase.onabort')
   @DocsEditable
   Stream<Event> get onAbort => abortEvent.forTarget(this);
 
   @DomName('IDBDatabase.onerror')
   @DocsEditable
   Stream<Event> get onError => errorEvent.forTarget(this);
 
   @DomName('IDBDatabase.onversionchange')
   @DocsEditable
-  Stream<UpgradeNeededEvent> get onVersionChange => versionChangeEvent.forTarget(this);
+  Stream<VersionChangeEvent> get onVersionChange => versionChangeEvent.forTarget(this);
 }
 
 @DocsEditable
 @deprecated
 class DatabaseEvents extends Events {
   @DocsEditable
   DatabaseEvents(EventTarget _ptr) : super(_ptr);
 
   @DocsEditable
   EventListenerList get abort => this['abort'];
@@ skipping 561 matching lines @@
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('IDBAny')
 class _IDBAny native "*IDBAny" {
 }