Construcs the RouteBuilder using the passed MatcherDumperInterface.
\Symfony\Component\Routing\Matcher\Dumper\MatcherDumperInterface $dumper: The matcher dumper used to store the route information.
\Drupal\Core\Lock\LockBackendInterface $lock: The lock backend.
\Symfony\Component\EventDispatcherEventDispatcherInterface: The event dispatcher to notify of routes.
public function __construct(MatcherDumperInterface $dumper, LockBackendInterface $lock, EventDispatcherInterface $dispatcher) {
$this->dumper = $dumper;
$this->lock = $lock;
$this->dispatcher = $dispatcher;
}