Fixed Dictionary emitted as interface and dictionary conversion with a null map

tools/dom/scripts/generator.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 provides shared functionality for systems to generate
 Dart APIs from the IDL database."""
 
 import copy
 import json
@@ skipping 1246 matching lines @@
     'custom': TypeData(clazz='Primitive', dart_type='dynamic'),
     'ClientRect': TypeData(clazz='Interface',
         dart_type='Rectangle', suppress_interface=True),
     'Date': TypeData(clazz='Primitive', dart_type='DateTime', native_type='double'),
     'Promise': TypeData(clazz='Primitive', dart_type='Future', native_type='ScriptPromise'),
     'DOMObject': TypeData(clazz='Primitive', dart_type='Object', native_type='ScriptValue'),
     'DOMString': TypeData(clazz='Primitive', dart_type='String', native_type='String'),
     # TODO(vsm): This won't actually work until we convert the Map to
     # a native JS Map for JS DOM.
     'Dictionary': TypeData(clazz='Primitive', dart_type='Map'),
+    # TODO(terry): It's a dictionary but a very complex dictionary is multiple lists.
+    #              Need to investigate a 1-off solution probably.
+    'MediaKeySystemConfiguration': TypeData(clazz='Primitive', dart_type='Map'),
     'DOMTimeStamp': TypeData(clazz='Primitive', dart_type='int', native_type='unsigned long long'),
     'object': TypeData(clazz='Primitive', dart_type='Object', native_type='ScriptValue'),
     'ObjectArray': TypeData(clazz='Primitive', dart_type='List'),
     'PositionOptions': TypeData(clazz='Primitive', dart_type='Object'),
     # TODO(sra): Come up with some meaningful name so that where this appears in
     # the documentation, the user is made aware that only a limited subset of
     # serializable types are actually permitted.
     'SerializedScriptValue': TypeData(clazz='Primitive', dart_type='dynamic'),
     'sequence': TypeData(clazz='Primitive', dart_type='List'),
     'void': TypeData(clazz='Primitive', dart_type='void'),
@@ skipping 241 matching lines @@
             return_type == 'Rectangle')
 
 def wrap_return_type_blink(return_type, type_name, type_registry):
     """Returns True if we should wrap the returned value. This checks
     a number of different variations, calling the more basic functions
     above."""
     return (wrap_unwrap_type_blink(return_type, type_registry) or
             wrap_unwrap_type_blink(type_name, type_registry) or
             wrap_type_blink(return_type, type_registry) or
             wrap_unwrap_list_blink(return_type, type_registry))