Final changes for 8.1 rebase.

composer.json

@@ -3,5 +3,8 @@
   "type": "drupal-module",
   "description": "Provides expanded entity APIs, which will be moved to Drupal core one day.",
   "homepage": "http://drupal.org/project/entity",
-  "license": "GPL-2.0+"
+  "license": "GPL-2.0+",
+  "require": {
+    "drupal/core": "~8.1"
+  }
 }

entity.info.yml

@@ -2,3 +2,5 @@ name: Entity
 description: Provides expanded entity APIs, which will be moved to Drupal core one day.
 type: module
 core: 8.x
+dependencies:
+  - system (>=8.1.0)

src/Controller/RevisionController.php

-<?php
-
-/**
- * @file
- * Contains \Drupal\entity\Controller\RevisionController.
- */
-
-namespace Drupal\entity\Controller;
-
-use Drupal\Core\Entity\Controller\EntityViewController;
-use Drupal\Core\Entity\EntityInterface;
-
-/**
- * Provides some controllers related with entity revisions.
- */
-class RevisionController extends EntityViewController {
-
-  /**
-   * Provides a page to render a single entity revision.
-   *
-   * @param \Drupal\Core\Entity\EntityInterface $_entity_revision
-   *   The Entity to be rendered. Note this variable is named $_entity_revision
-   *   rather than $entity to prevent collisions with other named placeholders
-   *   in the route.
-   * @param string $view_mode
-   *   (optional) The view mode that should be used to display the entity.
-   *   Defaults to 'full'.
-   *
-   * @return array
-   *   A render array.
-   */
-  public function view(EntityInterface $_entity_revision, $view_mode = 'full') {
-    return parent::view($_entity_revision, $view_mode);
-  }
-
-}

src/Routing/RevisionRouteProvider.php

@@ -51,7 +51,7 @@ class RevisionRouteProvider implements EntityRouteProviderInterface {
       $entity_type_id = $entity_type->id();
       $route = new Route($entity_type->getLinkTemplate('revision'));
       $route->addDefaults([
-        '_controller' => '\Drupal\entity\Controller\RevisionController::view',
+        '_controller' => '\Drupal\Core\Entity\Controller\EntityViewController::viewRevision',
         '_title_callback' => '\Drupal\Core\Entity\Controller\EntityController::title',
       ]);
       $route->addRequirements([