Drop [ExperimentalCallbackFunction]

third_party/WebKit/Source/bindings/scripts/code_generator_v8.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 120 matching lines @@
     def __init__(self, info_provider, cache_dir, output_dir):
         CodeGeneratorBase.__init__(self, MODULE_PYNAME, info_provider, cache_dir, output_dir)
         self.typedef_resolver = TypedefResolver(info_provider)
 
     def generate_code(self, definitions, definition_name):
         """Returns .h/.cpp code as ((path, content)...)."""
         # Set local type info
         if not self.should_generate_code(definitions):
             return set()
 
-        IdlType.set_callback_functions(definitions.callback_functions.keys())
         # Resolve typedefs
         self.typedef_resolver.resolve(definitions, definition_name)
         return self.generate_code_internal(definitions, definition_name)
 
     def generate_code_internal(self, definitions, definition_name):
         # This should be implemented in subclasses.
         raise NotImplementedError()
 
 
 class CodeGeneratorV8(CodeGeneratorV8Base):
@@ skipping 214 matching lines @@
     # pylint: disable=W0221
     def generate_code(self):
         callback_functions = self.info_provider.callback_functions
         if not callback_functions:
             return ()
         outputs = set()
         for callback_function_dict in callback_functions.itervalues():
             if callback_function_dict['component_dir'] != self.target_component:
                 continue
             callback_function = callback_function_dict['callback_function']
+            if 'Custom' in callback_function.extended_attributes:
+                continue
             path = callback_function_dict['full_path']
             outputs.update(self.generate_code_internal(callback_function, path))
         return outputs