Remove SetWrapperReferenceTo and SetWrapperReferenceFrom

third_party/WebKit/Source/bindings/scripts/v8_interface.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 # coding=utf-8
 #
 # 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
@@ skipping 195 matching lines @@
 
     # [PrimaryGlobal] and [Global]
     is_global = ('PrimaryGlobal' in extended_attributes or
                  'Global' in extended_attributes)
 
     # [ImmutablePrototype]
     # TODO(littledan): Is it possible to deduce this based on inheritance,
     # as in the WebIDL spec?
     is_immutable_prototype = is_global or 'ImmutablePrototype' in extended_attributes
 
-    # [SetWrapperReferenceFrom]
-    set_wrapper_reference_from = extended_attributes.get('SetWrapperReferenceFrom')
-    if set_wrapper_reference_from:
-        includes.update(['bindings/core/v8/V8GCController.h',
-                         'core/dom/Element.h'])
-
-    # [SetWrapperReferenceTo]
-    set_wrapper_reference_to_argument = extended_attributes.get('SetWrapperReferenceTo')
-    set_wrapper_reference_to = None
-    if set_wrapper_reference_to_argument:
-        set_wrapper_reference_to = {
-            'name': set_wrapper_reference_to_argument.name,
-            # FIXME: properly should be:
-            # 'cpp_type': set_wrapper_reference_to_argument.idl_type.cpp_type_args(raw_type=True),
-            # (if type is non-wrapper type like NodeFilter, normally RefPtr)
-            # Raw pointers faster though, and NodeFilter hacky anyway.
-            'cpp_type': set_wrapper_reference_to_argument.idl_type.implemented_as + '*',
-            'idl_type': set_wrapper_reference_to_argument.idl_type,
-            'v8_type': v8_types.v8_type(set_wrapper_reference_to_argument.idl_type.name),
-        }
-        set_wrapper_reference_to['idl_type'].add_includes_for_type()
-
-    has_visit_dom_wrapper = (set_wrapper_reference_from or set_wrapper_reference_to)
-
     wrapper_class_id = ('NodeClassId' if inherits_interface(interface.name, 'Node') else 'ObjectClassId')
 
     # [ActiveScriptWrappable] must be accompanied with [DependentLifetime].
     if active_scriptwrappable and not is_dependent_lifetime:
         raise Exception('[ActiveScriptWrappable] interface must also specify '
                         '[DependentLifetime]: %s' % interface.name)
 
     v8_class_name = v8_utilities.v8_class_name(interface)
     cpp_class_name = cpp_name(interface)
     cpp_class_name_or_partial = cpp_name_or_partial(interface)
     v8_class_name_or_partial = v8_utilities.v8_class_name_or_partial(interface)
 
     # TODO(peria): Generate the target list from 'Window' and 'HTMLDocument'.
     needs_runtime_enabled_installer = v8_class_name in [
         'V8Window', 'V8HTMLDocument', 'V8Document', 'V8Node', 'V8EventTarget']
 
     context = {
         'cpp_class': cpp_class_name,
         'cpp_class_or_partial': cpp_class_name_or_partial,
         'event_target_inheritance': 'InheritFromEventTarget' if is_event_target else 'NotInheritFromEventTarget',
         'is_gc_type': True,
         # FIXME: Remove 'EventTarget' special handling, http://crbug.com/383699
         'has_access_check_callbacks': (is_check_security and
                                        interface.name != 'EventTarget'),
         'has_custom_legacy_call_as_function': has_extended_attribute_value(interface, 'Custom', 'LegacyCallAsFunction'),  # [Custom=LegacyCallAsFunction]
         'has_partial_interface': len(interface.partial_interfaces) > 0,
-        'has_visit_dom_wrapper': has_visit_dom_wrapper,
         'header_includes': header_includes,
         'interface_name': interface.name,
         'is_array_buffer_or_view': is_array_buffer_or_view,
         'is_check_security': is_check_security,
         'is_event_target': is_event_target,
         'is_exception': interface.is_exception,
         'is_global': is_global,
         'is_immutable_prototype': is_immutable_prototype,
         'is_node': inherits_interface(interface.name, 'Node'),
         'is_partial': interface.is_partial,
         'is_typed_array_type': is_typed_array_type,
-        'lifetime': 'Dependent' if (has_visit_dom_wrapper or is_dependent_lifetime) else 'Independent',
+        'lifetime': 'Dependent' if is_dependent_lifetime else 'Independent',
         'measure_as': v8_utilities.measure_as(interface, None),  # [MeasureAs]
         'needs_runtime_enabled_installer': needs_runtime_enabled_installer,
         'origin_trial_enabled_function': v8_utilities.origin_trial_enabled_function_name(interface),
         'parent_interface': parent_interface,
         'pass_cpp_type': cpp_name(interface) + '*',
         'active_scriptwrappable': active_scriptwrappable,
         'runtime_enabled_feature_name': runtime_enabled_feature_name(interface),  # [RuntimeEnabled]
-        'set_wrapper_reference_from': set_wrapper_reference_from,
-        'set_wrapper_reference_to': set_wrapper_reference_to,
         'v8_class': v8_class_name,
         'v8_class_or_partial': v8_class_name_or_partial,
         'wrapper_class_id': wrapper_class_id,
     }
 
     # Constructors
     constructors = [constructor_context(interface, constructor)
                     for constructor in interface.constructors
                     # FIXME: shouldn't put named constructors with constructors
                     # (currently needed for Perl compatibility)
@@ skipping 1197 matching lines @@
     extended_attributes = deleter.extended_attributes
     is_call_with_script_state = v8_utilities.has_extended_attribute_value(deleter, 'CallWith', 'ScriptState')
     is_ce_reactions = 'CEReactions' in extended_attributes
     return {
         'is_call_with_script_state': is_call_with_script_state,
         'is_ce_reactions': is_ce_reactions,
         'is_custom': 'Custom' in extended_attributes,
         'is_raises_exception': 'RaisesException' in extended_attributes,
         'name': cpp_name(deleter),
     }