Fixing some of the tests disabled from the chrome IDL roll.

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 19 matching lines @@
     'SVGTests',
     'SVGTransformable',
     'SVGURIReference',
     'SVGZoomAndPan',
     'TimeoutHandler',
     ])
 
 def IsPureInterface(interface_name):
   return interface_name in _pure_interfaces
 
+#
+# Classes which have native constructors but which we are suppressing because
+# they are not cross-platform.
+#
+_suppressed_native_constructors = monitored.Set(
+    'generator._suppressed_native_constructors', [
+  'DocumentFragment',
+  'Range',
+  'Text',
+  ])
+
 _custom_types = monitored.Set('generator._custom_types',
                               typed_array_renames.keys())
 
 def IsCustomType(interface_name):
   return interface_name in _custom_types
 
 _methods_with_named_formals = monitored.Set(
     'generator._methods_with_named_formals', [
   'DirectoryEntry.getDirectory',
   'DirectoryEntry.getFile',
@@ skipping 185 matching lines @@
   new_info.type_name = 'Future'
 
   return new_info
 
 
 def AnalyzeConstructor(interface):
   """Returns an OperationInfo object for the constructor.
 
   Returns None if the interface has no Constructor.
   """
+  if interface.id in _suppressed_native_constructors:
+    return None
+
   if 'Constructor' in interface.ext_attrs:
     name = None
     overloads = interface.ext_attrs['Constructor']
     idl_args = [[] if f is None else f.arguments for f in overloads]
   elif 'NamedConstructor' in interface.ext_attrs:
     func_value = interface.ext_attrs.get('NamedConstructor')
     idl_args = [func_value.arguments]
     name = func_value.id
   else:
     return None
@@ skipping 872 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)