Remove support for attribute event listeners.

client/dom/generated/src/wrapping/_IDBDatabaseWrappingImplementation.dart

 // Copyright (c) 2011, 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.
 
 // WARNING: Do not edit - generated code.
 
 class _IDBDatabaseWrappingImplementation extends DOMWrapperBase implements IDBDatabase {
   _IDBDatabaseWrappingImplementation() : super() {}
 
   static create__IDBDatabaseWrappingImplementation() native {
     return new _IDBDatabaseWrappingImplementation();
   }
 
   String get name() { return _get_name(this); }
   static String _get_name(var _this) native;
 
-  EventListener get onabort() { return _get_onabort(this); }
-  static EventListener _get_onabort(var _this) native;
-
-  void set onabort(EventListener value) { _set_onabort(this, value); }
-  static void _set_onabort(var _this, EventListener value) native;
-
-  EventListener get onerror() { return _get_onerror(this); }
-  static EventListener _get_onerror(var _this) native;
-
-  void set onerror(EventListener value) { _set_onerror(this, value); }
-  static void _set_onerror(var _this, EventListener value) native;
-
-  EventListener get onversionchange() { return _get_onversionchange(this); }
-  static EventListener _get_onversionchange(var _this) native;
-
-  void set onversionchange(EventListener value) { _set_onversionchange(this, value); }
-  static void _set_onversionchange(var _this, EventListener value) native;
-
   String get version() { return _get_version(this); }
   static String _get_version(var _this) native;
 
   void addEventListener(String type, EventListener listener, [bool useCapture = null]) {
     if (useCapture === null) {
       _addEventListener(this, type, listener);
       return;
     } else {
       _addEventListener_2(this, type, listener, useCapture);
       return;
@@ skipping 41 matching lines @@
   }
   static IDBVersionChangeRequest _setVersion(receiver, version) native;
 
   IDBTransaction transaction(String storeName, int mode) {
     return _transaction(this, storeName, mode);
   }
   static IDBTransaction _transaction(receiver, storeName, mode) native;
 
   String get typeName() { return "IDBDatabase"; }
 }