Add enables consistent with Chrome's WebKit

client/dom/generated/src/interface/WorkerContext.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.
 
 interface WorkerGlobalScope {
 
   WorkerLocation get location();
 
@@ skipping 16 matching lines @@
   void clearInterval(int handle);
 
   void clearTimeout(int handle);
 
   void close();
 
   bool dispatchEvent(Event evt);
 
   void importScripts();
 
+  Database openDatabase(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]);
+
+  DatabaseSync openDatabaseSync(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]);
+
   void removeEventListener(String type, EventListener listener, [bool useCapture]);
 
   int setInterval(TimeoutHandler handler, int timeout);
 
   int setTimeout(TimeoutHandler handler, int timeout);
 
   void webkitRequestFileSystem(int type, int size, [FileSystemCallback successCallback, ErrorCallback errorCallback]);
 
   DOMFileSystemSync webkitRequestFileSystemSync(int type, int size);
 
   EntrySync webkitResolveLocalFileSystemSyncURL(String url);
 
   void webkitResolveLocalFileSystemURL(String url, [EntryCallback successCallback, ErrorCallback errorCallback]);
 }
 
 interface WorkerContext extends WorkerGlobalScope {
 
   static final int PERSISTENT = 1;
 
   static final int TEMPORARY = 0;
 }