Do not delete DOMStringMap and DOMStringList types from idl database.

lib/dom/scripts/dartdomgenerator.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.
 
 """This is the entry point to create Dart APIs from the IDL database."""
 
 import dartgenerator
 import database
 import logging.config
@@ skipping 67 matching lines @@
       auxiliary_dir=os.path.join(current_dir, '..', 'src'),
       template_dir=os.path.join(current_dir, '..', 'templates'),
       base_package='')
   generator.LoadAuxiliary()
 
   common_database = database.Database(database_dir)
   if use_database_cache:
     common_database.LoadFromCache()
   else:
     common_database.Load()
-  # Remove these types since they are mapped directly to dart.
-  common_database.DeleteInterface('DOMStringMap')
-  common_database.DeleteInterface('DOMStringList')
 
   generator.RenameTypes(common_database, {
       # W3C -> Dart renames
       'AbstractView': 'Window',
       'Function': 'EventListener',
-      'DOMStringMap': 'Map<String, String>',
-      'DOMStringList': 'List<String>',
       }, True)
+
   generator.FilterMembersWithUnidentifiedTypes(common_database)
   webkit_database = common_database.Clone()
 
   # Generate Dart interfaces for the WebKit DOM.
   generator.FilterInterfaces(database = webkit_database,
                              or_annotations = ['WebKit', 'Dart'],
                              exclude_displaced = ['WebKit'],
                              exclude_suppressed = ['WebKit', 'Dart'])
   generator.RenameTypes(webkit_database, _webkit_renames, True)
 
@@ skipping 80 matching lines @@
                 database_dir, use_database_cache)
 
   if html_systems:
     output_dir = options.output_dir or os.path.join(current_dir,
         '../../html/generated')
     GenerateDOM(html_systems, True, output_dir,
                 database_dir, use_database_cache or dom_systems)
 
 if __name__ == '__main__':
   sys.exit(main())