IDL compiler: [PerContextEnabled] for getters

Source/bindings/templates/interface_base.cpp

 {# FIXME: update copyright and license header #}
 /*
     This file is part of the Blink open source project.
     This file has been auto-generated by CodeGeneratorV8.pm. DO NOT MODIFY!
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
@@ skipping 53 matching lines @@
 {{attribute_getter(attribute)}}
 {% endif %}
 {{attribute_getter_callback(attribute)}}
 {% endfor %}
 } // namespace {{cpp_class_name}}V8Internal
 
 {% block class_attributes %}{% endblock %}
 {% block configure_class_template %}{% endblock %}
 {% block get_template %}{% endblock %}
 {% block has_instance_and_has_instance_in_any_world %}{% endblock %}
+{% block install_per_context_attributes %}{% endblock %}
 {% block create_wrapper_and_deref_object %}{% endblock %}
 } // namespace WebCore
 {% if conditional_string %}
 
 #endif // {{conditional_string}}
 {% endif %}