Make [TypeChecking=Interface] the default

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 1337 matching lines @@
 def property_setter(setter, interface):
     if not setter:
         return None
 
     extended_attributes = setter.extended_attributes
     idl_type = setter.arguments[1].idl_type
     idl_type.add_includes_for_type(extended_attributes)
     is_call_with_script_state = v8_utilities.has_extended_attribute_value(setter, 'CallWith', 'ScriptState')
     is_raises_exception = 'RaisesException' in extended_attributes
 
-    # [TypeChecking=Interface] / [LegacyInterfaceTypeChecking]
+    # [LegacyInterfaceTypeChecking]
     has_type_checking_interface = (
         not is_legacy_interface_type_checking(interface, setter) and
         idl_type.is_wrapper_type)
 
     return {
         'has_exception_state': (is_raises_exception or
                                 idl_type.v8_conversion_needs_exception_state),
         'has_type_checking_interface': has_type_checking_interface,
         'idl_type': idl_type.base_type,
         'is_call_with_script_state': is_call_with_script_state,
@@ skipping 12 matching lines @@
 
     extended_attributes = deleter.extended_attributes
     idl_type = deleter.idl_type
     is_call_with_script_state = v8_utilities.has_extended_attribute_value(deleter, 'CallWith', 'ScriptState')
     return {
         'is_call_with_script_state': is_call_with_script_state,
         'is_custom': 'Custom' in extended_attributes,
         'is_raises_exception': 'RaisesException' in extended_attributes,
         'name': cpp_name(deleter),
     }