File: vendor/sensio/framework-extra-bundle/Resources/config/security.xml

<?xml version="1.0" ?>

<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">

    <services>
        <service id="sensio_framework_extra.security.listener" class="Sensio\Bundle\FrameworkExtraBundle\EventListener\SecurityListener">
            <argument type="service" id="security.context" on-invalid="null" />
            <argument type="service" id="sensio_framework_extra.security.expression_language" on-invalid="null" />
            <argument type="service" id="security.authentication.trust_resolver" on-invalid="null" />
            <argument type="service" id="security.role_hierarchy" on-invalid="null" />
            <argument type="service" id="security.token_storage" on-invalid="null" />
            <argument type="service" id="security.authorization_checker" on-invalid="null" />
            <tag name="kernel.event_subscriber" />
        </service>

        <service id="sensio_framework_extra.security.expression_language.default" class="Sensio\Bundle\FrameworkExtraBundle\Security\ExpressionLanguage" public="false" />
    </services>
</container>