IDL: Improve "includes for type" mechanism in various ways

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 52 matching lines @@
             idl_type.is_explicit_nullable)
 
 
 def method_context(interface, method, is_visible=True):
     arguments = method.arguments
     extended_attributes = method.extended_attributes
     idl_type = method.idl_type
     is_static = method.is_static
     name = method.name
 
-    idl_type.add_includes_for_type()
+    if is_visible:
+        idl_type.add_includes_for_type(extended_attributes)
+
     this_cpp_value = cpp_value(interface, method, len(arguments))
 
     def function_template():
         if is_static:
             return 'functionTemplate'
         if is_unforgeable(interface, method):
             return 'instanceTemplate'
         return 'prototypeTemplate'
 
     is_implemented_in_private_script = 'ImplementedInPrivateScript' in extended_attributes
@@ skipping 28 matching lines @@
 
     is_check_security_for_window = (
         has_extended_attribute_value(interface, 'CheckSecurity', 'Window') and
         not is_do_not_check_security)
 
     is_raises_exception = 'RaisesException' in extended_attributes
     is_custom_call_epilogue = has_extended_attribute_value(method, 'Custom', 'CallEpilogue')
 
     return {
         'activity_logging_world_list': v8_utilities.activity_logging_world_list(method),  # [ActivityLogging]
-        'arguments': [argument_context(interface, method, argument, index)
+        'arguments': [argument_context(interface, method, argument, index, is_visible=is_visible)
                       for index, argument in enumerate(arguments)],
         'argument_declarations_for_private_script':
             argument_declarations_for_private_script(interface, method),
         'conditional_string': v8_utilities.conditional_string(method),
         'cpp_type': (v8_types.cpp_template_type('Nullable', idl_type.cpp_type)
                      if idl_type.is_explicit_nullable else idl_type.cpp_type),
         'cpp_value': this_cpp_value,
         'cpp_type_initializer': idl_type.cpp_type_initializer,
         'custom_registration_extended_attributes':
             CUSTOM_REGISTRATION_EXTENDED_ATTRIBUTES.intersection(
@@ skipping 55 matching lines @@
         'signature': 'v8::Local<v8::Signature>()' if is_static or 'DoNotCheckSignature' in extended_attributes else 'defaultSignature',
         'use_output_parameter_for_result': idl_type.use_output_parameter_for_result,
         'use_local_result': use_local_result(method),
         'v8_set_return_value': v8_set_return_value(interface.name, method, this_cpp_value),
         'v8_set_return_value_for_main_world': v8_set_return_value(interface.name, method, this_cpp_value, for_main_world=True),
         'visible': is_visible,
         'world_suffixes': ['', 'ForMainWorld'] if 'PerWorldBindings' in extended_attributes else [''],  # [PerWorldBindings],
     }
 
 
-def argument_context(interface, method, argument, index):
+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]
     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
@@ skipping 241 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))