Fixed more sdk/lib issues

tools/dom/scripts/dartgenerator.py

 #!/usr/bin/python
 # Copyright (c) 2012, 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 module generates Dart APIs from the IDL database."""
 
 import emitter
 import idlnode
 import logging
 import os
 import re
 import shutil
 from generator import *
+from idlnode import IDLType
 
 _logger = logging.getLogger('dartgenerator')
 
 def MergeNodes(node, other):
   node.operations.extend(other.operations)
   for attribute in other.attributes:
     if not node.has_attribute(attribute):
       node.attributes.append(attribute)
 
   node.constants.extend(other.constants)
@@ skipping 213 matching lines @@
         if not(isinstance(call_with, list)):
           call_with = [call_with]
         constructor_with = operation.ext_attrs.get('ConstructorCallWith', [])
         if not(isinstance(constructor_with, list)):
           constructor_with = [constructor_with]
         call_with = call_with + constructor_with
 
         if 'ScriptArguments' in call_with:
           operation.arguments.append(ARG)
 
-  # TODO(terry): Hack to remove 3rd arguments in setInterval/setTimeout.
-  def HackCleanupTimers(self, database):
+  def CleanupOperationArguments(self, database):
     for interface in database.GetInterfaces():
       for operation in interface.operations:
+        # TODO(terry): Hack to remove 3rd arguments in setInterval/setTimeout.
         if ((operation.id == 'setInterval' or operation.id == 'setTimeout') and \
             operation.arguments[0].type.id == 'any'):
           operation.arguments.pop(2)
+
+        # Massage any operation argument type that is IDLEnum to String.
+        for index, argument in enumerate(operation.arguments):
+          type_name = argument.type.id
+          if database.HasEnum(type_name):
+            operation.arguments[index].type = IDLType('DOMString')
+