Issue #3091246: Allow MenuLinkTree manipulators to be altered

Closes #3091246

core/lib/Drupal/Core/Menu/MenuLinkBase.php

@@ -3,7 +3,7 @@
 namespace Drupal\Core\Menu;
 
 use Drupal\Component\Plugin\Exception\PluginException;
-use Drupal\Core\Cache\Cache;
+use Drupal\Core\Cache\RefinableCacheableDependencyTrait;
 use Drupal\Core\Plugin\PluginBase;
 use Drupal\Core\Url;
 
@@ -12,6 +12,8 @@
  */
 abstract class MenuLinkBase extends PluginBase implements MenuLinkInterface {
 
+  use RefinableCacheableDependencyTrait;
+
   /**
    * The list of definition values where an override is allowed.
    *
@@ -209,25 +211,4 @@ public function deleteLink() {
     throw new PluginException("Menu link plugin with ID '{$this->getPluginId()}' does not support deletion");
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function getCacheMaxAge() {
-    return Cache::PERMANENT;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getCacheContexts() {
-    return [];
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getCacheTags() {
-    return [];
-  }
-
 }

[Andrei Mateescu]

This doesn't seem to be related to the scope of this issue, I think these changes need to be moved to a separate issue/MR.