Change scripts to avoid generating things that bloat the compiled code

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 1360 matching lines @@
         native_type='SVGPathSegListPropertyTearOff'),
     'SVGPoint': TypeData(clazz='SVGTearOff', native_type='SVGPointTearOff'),
     'SVGPointList': TypeData(clazz='SVGTearOff', native_type='SVGPointListTearOff'),
     'SVGPreserveAspectRatio': TypeData(clazz='SVGTearOff', native_type='SVGPreserveAspectRatioTearOff'),
     'SVGRect': TypeData(clazz='SVGTearOff', native_type='SVGRectTearOff'),
     'SVGStringList': TypeData(clazz='SVGTearOff', item_type='DOMString',
         native_type='SVGStringListTearOff'),
     'SVGTransform': TypeData(clazz='SVGTearOff', native_type="SVGPropertyTearOff<SVGTransform>"),
     'SVGTransformList': TypeData(clazz='SVGTearOff', item_type='SVGTransform',
         native_type='SVGTransformListPropertyTearOff'),
+
+    # TODO(alanknight): A better way to handle typedef ordering issues.
+    'DOMHighResTimeStamp': TypeData(clazz='Primitive', dart_type='num', native_type='double'),
+    'PerformanceEntryList': TypeData(clazz='Interface', dart_type='List<PerformanceEntry>'),
+    'JSON': TypeData(clazz='Primitive', dart_type='Object'),
 })
 
 _svg_supplemental_includes = [
     '"core/svg/properties/SVGPropertyTraits.h"',
 ]
 
 class TypeRegistry(object):
   def __init__(self, database, renamer=None):
     self._database = database
     self._renamer = renamer
@@ skipping 130 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))