Turn on webaudio for JS backends.

client/dom/scripts/fremontcutbuilder.py

 #!/usr/bin/python
 # 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.
 
 import database
 import databasebuilder
 import idlparser
 import os.path
 import logging.config
@@ skipping 21 matching lines @@
     'html',
     'html/canvas',
     'inspector',
     'loader',
     'loader/appcache',
     'notifications',
     'page',
     'plugins',
     'storage',
     'svg',
-    # TODO(vsm): Fix parser/idl file to re-enable this.
-    #    'webaudio',
+    'webaudio',
     'websockets',
     'workers',
     'xml',
   ]
   # TODO(vsm): Move this to a README.
   # This is the Dart SVN revision.
   webkit_revision = '1060'
 
   # TODO(vsm): Reconcile what is exposed here and inside WebKit code
   # generation.
@@ skipping 63 matching lines @@
 
   builder.fix_displacements('WebKit')
 
   # Cleanup:
   builder.normalize_annotations(['WebKit', 'Dart'])
 
   db.Save()
 
 if __name__ == '__main__':
   sys.exit(main())