Make fremontcut serial by default

lib/html/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 fremontcutbuilder
@@ skipping 138 matching lines @@
   library_dir = os.path.dirname(library_path)
   library_filename = os.path.basename(library_path)
   copy_dart_script = os.path.relpath('../../../tools/copy_dart.py', library_dir)
   output_dir = os.path.relpath(output_dir, library_dir)
   command = ' '.join(['cd', library_dir, ';',
                       copy_dart_script, output_dir, library_filename])
   subprocess.call([command], shell=True)
 
 def main():
   parser = optparse.OptionParser()
+  parser.add_option('--parallel', dest='parallel',
+                    action='store_true', default=False,
+                    help='Use fremontcut in parallel mode.')
   parser.add_option('--rebuild', dest='rebuild',
                     action='store_true', default=False,
                     help='Rebuild the database from IDL using fremontcut.')
   parser.add_option('--systems', dest='systems',
                     action='store', type='string',
                     default='htmldart2js,htmldartium',
                     help='Systems to generate (htmldart2js, htmldartium)')
   parser.add_option('--output-dir', dest='output_dir',
                     action='store', type='string',
                     default=None,
@@ skipping 13 matching lines @@
   output_dir = options.output_dir or os.path.join(current_dir, '../generated')
   dart2js_output_dir = None
   if 'htmldart2js' in systems:
     dart2js_output_dir = os.path.join(output_dir, 'dart2js')
   dartium_output_dir = None
   if 'htmldartium' in systems:
     dartium_output_dir = os.path.join(output_dir, 'dartium')
 
   if options.rebuild:
     # Parse the IDL and create the database.
-    database = fremontcutbuilder.main()
+    database = fremontcutbuilder.main(options.parallel)
   else:
     # Load the previously generated database.
     database = LoadDatabase(database_dir, options.use_database_cache)
   GenerateFromDatabase(database, dart2js_output_dir, dartium_output_dir)
 
   if 'htmldart2js' in systems:
     _logger.info('Copy html_dart2js to dart2js/')
     GenerateSingleFile(os.path.join(dart2js_output_dir, 'html_dart2js.dart'),
                        '../dart2js')
   if 'htmldartium' in systems:
     _logger.info('Copy html_dartium to dartium/')
     GenerateSingleFile(os.path.join(dartium_output_dir, 'html_dartium.dart'),
                        '../dartium')
 
 if __name__ == '__main__':
   sys.exit(main())