File: vendor/symfony/symfony/src/Symfony/Bundle/SecurityBundle/Resources/config/security_acl.xml

<?xml version="1.0" encoding="UTF-8"?>

<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">

    <parameters>
        <parameter key="security.acl.permission_granting_strategy.class">Symfony\Component\Security\Acl\Domain\PermissionGrantingStrategy</parameter>

        <parameter key="security.acl.voter.class">Symfony\Component\Security\Acl\Voter\AclVoter</parameter>
        <parameter key="security.acl.permission.map.class">Symfony\Component\Security\Acl\Permission\BasicPermissionMap</parameter>

        <parameter key="security.acl.object_identity_retrieval_strategy.class">Symfony\Component\Security\Acl\Domain\ObjectIdentityRetrievalStrategy</parameter>
        <parameter key="security.acl.security_identity_retrieval_strategy.class">Symfony\Component\Security\Acl\Domain\SecurityIdentityRetrievalStrategy</parameter>

        <!-- never used? -->
        <parameter key="security.acl.collection_cache.class">Symfony\Component\Security\Acl\Domain\AclCollectionCache</parameter>
        <parameter key="security.acl.cache.doctrine.class">Symfony\Component\Security\Acl\Domain\DoctrineAclCache</parameter>
    </parameters>

    <services>
        <service id="security.acl.object_identity_retrieval_strategy" class="%security.acl.object_identity_retrieval_strategy.class%" public="false" />

        <service id="security.acl.security_identity_retrieval_strategy" class="%security.acl.security_identity_retrieval_strategy.class%" public="false">
            <argument type="service" id="security.role_hierarchy" />
            <argument type="service" id="security.authentication.trust_resolver" />
        </service>

        <service id="security.acl.permission_granting_strategy" class="%security.acl.permission_granting_strategy.class%" public="false">
            <call method="setAuditLogger">
                <argument type="service" id="security.acl.audit_logger" on-invalid="ignore" />
            </call>
        </service>

        <service id="security.acl.permission.map" class="%security.acl.permission.map.class%" public="false" />

        <service id="security.acl.voter.basic_permissions" class="%security.acl.voter.class%" public="false">
            <tag name="monolog.logger" channel="security" />
            <argument type="service" id="security.acl.provider" />
            <argument type="service" id="security.acl.object_identity_retrieval_strategy" />
            <argument type="service" id="security.acl.security_identity_retrieval_strategy" />
            <argument type="service" id="security.acl.permission.map" />
            <argument type="service" id="logger" on-invalid="null" />
            <tag name="security.voter" priority="255" />
        </service>
    </services>
</container>