--- /dev/null
+<?php
+
+namespace Drupal\language;
+
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\DefaultPluginManager;
+
+/**
+ * Manages language negotiation methods.
+ */
+class LanguageNegotiationMethodManager extends DefaultPluginManager {
+
+ /**
+ * Constructs a new LanguageNegotiationMethodManager object.
+ *
+ * @param \Traversable $namespaces
+ * An object that implements \Traversable which contains the root paths
+ * keyed by the corresponding namespace to look for plugin implementations.
+ * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
+ * An object that implements CacheBackendInterface
+ * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+ * An object that implements ModuleHandlerInterface
+ */
+ public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
+ parent::__construct('Plugin/LanguageNegotiation', $namespaces, $module_handler, 'Drupal\language\LanguageNegotiationMethodInterface', 'Drupal\language\Annotation\LanguageNegotiation');
+ $this->cacheBackend = $cache_backend;
+ $this->cacheKeyPrefix = 'language_negotiation_plugins';
+ $this->cacheKey = 'language_negotiation_plugins';
+ $this->alterInfo('language_negotiation_info');
+ }
+
+}