Replace former SecurityContext argument by TokenStorage

Author: l-vo

components/security/authorization.rst

@@ -204,15 +204,17 @@ which contains request matchers and a corresponding set of attributes that
 are required for the current user to get access to the application::
 
     use Symfony\Component\Security\Http\AccessMap;
+    use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorage;
     use Symfony\Component\HttpFoundation\RequestMatcher;
     use Symfony\Component\Security\Http\Firewall\AccessListener;
 
     $accessMap = new AccessMap();
+    $tokenStorage = new TokenStorage();
     $requestMatcher = new RequestMatcher('^/admin');
     $accessMap->add($requestMatcher, array('ROLE_ADMIN'));
 
     $accessListener = new AccessListener(
-        $securityContext,
+        $tokenStorage,
         $accessDecisionManager,
         $accessMap,
         $authenticationManager