Fixing CustomEvent.detail leaks.

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 529 matching lines @@
       Conversion('convertDartToNative_StringArray', 'List<String>', 'List'),
 
     'any set IDBObjectStore.add': _serialize_SSV,
     'any set IDBObjectStore.put': _serialize_SSV,
     'any set IDBCursor.update': _serialize_SSV,
 
     # postMessage
     'any set MessagePort.postMessage': _serialize_SSV,
     'SerializedScriptValue set DOMWindow.postMessage': _serialize_SSV,
 
+    '* get CustomEvent.detail':
+      Conversion('convertNativeToDart_SerializedScriptValue',
+                 'dynamic', 'dynamic'),
+
     # receiving message via MessageEvent
     '* get MessageEvent.data':
       Conversion('convertNativeToDart_SerializedScriptValue',
                  'dynamic', 'dynamic'),
 
     '* get History.state':
       Conversion('convertNativeToDart_SerializedScriptValue',
                  'dynamic', 'dynamic'),
 
     '* get PopStateEvent.state':
@@ skipping 619 matching lines @@
           type_name, type_data, dart_interface_name, self)
 
     if type_data.clazz == 'BasicTypedList':
       dart_interface_name = self._renamer.RenameInterface(
           self._database.GetInterface(type_name))
       return BasicTypedListIDLTypeInfo(
           type_name, type_data, dart_interface_name, self)
 
     class_name = '%sIDLTypeInfo' % type_data.clazz
     return globals()[class_name](type_name, type_data)