Constructs an AliasManager.
\Drupal\Core\Database\Connection $connection: The database connection to use.
\Drupal\Core\Path\AliasWhitelist $whitelist: The whitelist implementation to use.
\Drupal\Core\Language\LanguageManager $language_manager: The language manager.
public function __construct(Connection $connection, AliasWhitelist $whitelist, LanguageManager $language_manager) {
$this->connection = $connection;
$this->languageManager = $language_manager;
$this->whitelist = $whitelist;
}