Make [TypeChecking=Interface] the default

third_party/WebKit/Source/bindings/scripts/v8_methods.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 191 matching lines @@
 
 
 def argument_context(interface, method, argument, index, is_visible=True):
     extended_attributes = argument.extended_attributes
     idl_type = argument.idl_type
     if is_visible:
         idl_type.add_includes_for_type(extended_attributes)
     this_cpp_value = cpp_value(interface, method, index)
     is_variadic_wrapper_type = argument.is_variadic and idl_type.is_wrapper_type
 
-    # [TypeChecking=Interface] / [LegacyInterfaceTypeChecking]
+    # [LegacyInterfaceTypeChecking]
     has_type_checking_interface = (
         not is_legacy_interface_type_checking(interface, method) and
         idl_type.is_wrapper_type)
 
     if ('ImplementedInPrivateScript' in extended_attributes and
             not idl_type.is_wrapper_type and
             not idl_type.is_basic_type):
         raise Exception('Private scripts supports only primitive types and DOM wrappers.')
 
     set_default_value = argument.set_default_value
@@ skipping 240 matching lines @@
     return method.idl_type and method.idl_type.name == 'Promise'
 
 IdlOperation.returns_promise = property(method_returns_promise)
 
 
 def argument_conversion_needs_exception_state(method, argument):
     idl_type = argument.idl_type
     return (idl_type.v8_conversion_needs_exception_state or
             argument.is_variadic or
             (method.returns_promise and idl_type.is_string_type))