Adding supported checks and flags to window.performance.

tools/dom/scripts/htmldartgenerator.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 the system to generate
 dart:html APIs from the IDL database."""
 
 from generator import AnalyzeOperation, ConstantOutputOrder, \
     DartDomNameOfAttribute, FindMatchingAttribute, IsDartCollectionType, \
@@ skipping 15 matching lines @@
     self._database = options.database
     self._interface = interface
     self._type_registry = options.type_registry
     self._interface_type_info = self._type_registry.TypeInfo(self._interface.id)
     self._renamer = options.renamer
 
   def EmitSupportCheck(self):
     if self.HasSupportCheck():
       support_check = self.GetSupportCheck()
       self._members_emitter.Emit('\n'
-          '  /**\n'
-          '   * Checks if this type is supported on the current platform\n'
-          '   */\n'
+          '  /// Checks if this type is supported on the current platform.\n'

[Emily Fortuna, 2013/01/11 21:40:10]

I know I suggested /** stuff */, but if you're going to do the /// I'd say it's
better to just do this:
/**
  * stuff
  */

just so we're not mixing comment styles. :-)

           '  static bool get supported => $SUPPORT_CHECK;\n',
           SUPPORT_CHECK=support_check)
 
   def EmitAttributeDocumentation(self, attribute):
     """ Emits the MDN dartdoc comment for an attribute.
     """
     dom_name = DartDomNameOfAttribute(attribute)
     self._members_emitter.Emit('\n  /// @domName $DOMINTERFACE.$DOMNAME;'
                                ' @docsEditable true',
         DOMINTERFACE=attribute.doc_js_interface_name,
@@ skipping 415 matching lines @@
         walk(interface.parents)
       else:
         walk(interface.parents[1:])
     return result
 
   def _DartType(self, type_name):
     return self._type_registry.DartType(type_name)
 
   def _IsPrivate(self, name):
     return name.startswith('_')