bindings: Retires V8T::toEventTarget and reduces the binary size.

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 164 matching lines @@
 
     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)
 
     context = {
         'conditional_string': conditional_string(interface),  # [Conditional]
         'cpp_class': cpp_class_name,
         'cpp_class_or_partial': cpp_class_name_or_partial,
+        'event_target_inheritance': 'InheritFromEventTarget' if is_event_target else 'NotInheritFromEventTarget',
         'gc_type': this_gc_type,
         # FIXME: Remove 'EventTarget' special handling, http://crbug.com/383699
         'has_access_check_callbacks': (is_check_security and
                                        interface.name != 'Window' and
                                        interface.name != 'EventTarget'),
         'has_custom_legacy_call_as_function': has_extended_attribute_value(interface, 'Custom', 'LegacyCallAsFunction'),  # [Custom=LegacyCallAsFunction]
         'has_custom_to_v8': has_extended_attribute_value(interface, 'Custom', 'ToV8'),  # [Custom=ToV8]
         '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_active_dom_object': is_active_dom_object,
         'is_array_buffer_or_view': is_array_buffer_or_view,
         'is_check_security': is_check_security,
-        'is_dependent_lifetime': is_dependent_lifetime,
         'is_event_target': is_event_target,
         'is_exception': interface.is_exception,
         'is_node': inherits_interface(interface.name, 'Node'),
         'is_partial': interface.is_partial,
         'is_typed_array_type': is_typed_array_type,
         'iterator_method': iterator_method,
         'lifetime': 'Dependent'
             if (has_visit_dom_wrapper or
                 is_active_dom_object or
                 is_dependent_lifetime)
@@ skipping 1025 matching lines @@
         deleter = next(
             method
             for method in interface.operations
             if ('deleter' in method.specials and
                 len(method.arguments) == 1 and
                 str(method.arguments[0].idl_type) == 'DOMString'))
     except StopIteration:
         return None
 
     return property_deleter(deleter)