Adding support flags to Event.clipboardData

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 787 matching lines @@
   'DOMWindow.webkitRequestFileSystem': _file_system_annotations,
   'DOMWindow.webkitResolveLocalFileSystemURL': _file_system_annotations,
   'Element.onwebkitTransitionEnd': _all_but_ie9_annotations,
   # Placeholder to add experimental flag, implementation for this is
   # pending in a separate CL.
   'Element.webkitMatchesSelector': ['@Experimental()'],
   'Element.webkitCreateShadowRoot': [
     "@SupportedBrowser(SupportedBrowser.CHROME, '25')",
     "@Experimental",
   ],
+  'Event.clipboardData': _webkit_experimental_annotations,
   'FormData': _all_but_ie9_annotations,
   'HashChangeEvent': [
     "@SupportedBrowser(SupportedBrowser.CHROME)",
     "@SupportedBrowser(SupportedBrowser.FIREFOX)",
     "@SupportedBrowser(SupportedBrowser.SAFARI)",
   ],
   'History.pushState': _history_annotations,
   'History.replaceState': _history_annotations,
   'HTMLContentElement': _shadow_dom_annotations,
   'HTMLDataListElement': _all_but_ie9_annotations,
@@ skipping 747 matching lines @@
                                   self)
 
     if type_data.clazz == 'SVGTearOff':
       dart_interface_name = self._renamer.RenameInterface(
           self._database.GetInterface(type_name))
       return SVGTearOffIDLTypeInfo(
           type_name, type_data, dart_interface_name, self)
 
     class_name = '%sIDLTypeInfo' % type_data.clazz
     return globals()[class_name](type_name, type_data)