diff --git a/core/modules/comment/comment.admin.inc b/core/modules/comment/comment.admin.inc
deleted file mode 100644
index 6502873..0000000
--- a/core/modules/comment/comment.admin.inc
+++ /dev/null
@@ -1,217 +0,0 @@
-<?php
-
-/**
- * @file
- * Admin page callbacks for the Comment module.
- */
-
-use Drupal\comment\Form\ConfirmDeleteMultiple;
-
-/**
- * Page callback: Presents an administrative comment listing.
- *
- * @param $type
- *   The type of the overview form ('approval' or 'new'). See
- *   comment_admin_overview() for details.
- *
- * @see comment_menu()
- * @see comment_multiple_delete_confirm()
- *
- * @deprecated Use \Drupal\comment\Controller\CommentController::adminPage()
- */
-function comment_admin($type = 'new') {
-  $request = \Drupal::request();
-  $edit = $request->request->all();
-
-  if (isset($edit['operation']) && ($edit['operation'] == 'delete') && isset($edit['comments']) && $edit['comments']) {
-    return drupal_get_form(ConfirmDeleteMultiple::create(\Drupal::getContainer()), $request);
-  }
-  else {
-    return drupal_get_form('comment_admin_overview', $type);
-  }
-}
-
-/**
- * Form constructor for the comment overview administration form.
- *
- * @param $arg
- *   The type of overview form ('approval' or 'new').
- *
- * @ingroup forms
- * @see comment_admin()
- * @see comment_admin_overview_validate()
- * @see comment_admin_overview_submit()
- * @see theme_comment_admin_overview()
- */
-function comment_admin_overview($form, &$form_state, $arg) {
-  // Build an 'Update options' form.
-  $form['options'] = array(
-    '#type' => 'details',
-    '#title' => t('Update options'),
-    '#attributes' => array('class' => array('container-inline')),
-  );
-
-  if ($arg == 'approval') {
-    $options['publish'] = t('Publish the selected comments');
-  }
-  else {
-    $options['unpublish'] = t('Unpublish the selected comments');
-  }
-  $options['delete'] = t('Delete the selected comments');
-
-  $form['options']['operation'] = array(
-    '#type' => 'select',
-    '#title' => t('Action'),
-    '#title_display' => 'invisible',
-    '#options' => $options,
-    '#default_value' => 'publish',
-  );
-  $form['options']['submit'] = array(
-    '#type' => 'submit',
-    '#value' => t('Update'),
-  );
-
-  // Load the comments that need to be displayed.
-  $status = ($arg == 'approval') ? COMMENT_NOT_PUBLISHED : COMMENT_PUBLISHED;
-  $header = array(
-    'subject' => array('data' => t('Subject'), 'field' => 'subject'),
-    'author' => array('data' => t('Author'), 'field' => 'name', 'class' => array(RESPONSIVE_PRIORITY_MEDIUM)),
-    'posted_in' => array('data' => t('Posted in'), 'field' => 'node_title', 'class' => array(RESPONSIVE_PRIORITY_LOW)),
-    'changed' => array('data' => t('Updated'), 'field' => 'c.changed', 'sort' => 'desc', 'class' => array(RESPONSIVE_PRIORITY_LOW)),
-    'operations' => t('Operations'),
-  );
-
-  $query = db_select('comment', 'c')
-    ->extend('Drupal\Core\Database\Query\PagerSelectExtender')
-    ->extend('Drupal\Core\Database\Query\TableSortExtender');
-  $query->join('node_field_data', 'n', 'n.nid = c.nid');
-  $query->addTag('node_access');
-  $result = $query
-    ->fields('c', array('cid', 'nid', 'subject', 'name', 'changed'))
-    ->condition('c.status', $status)
-    ->limit(50)
-    ->orderByHeader($header)
-    ->execute();
-
-  $nids = array();
-  $cids = array();
-
-  // We collect a sorted list of node_titles during the query to attach to the
-  // comments later.
-  foreach ($result as $row) {
-    $nids[] = $row->nid;
-    $cids[] = $row->cid;
-  }
-  // Ensure all nodes are statically cached so that we do not have to load them
-  // individually when getting their labels below.
-  node_load_multiple($nids);
-  $comments = comment_load_multiple($cids);
-
-  // Build a table listing the appropriate comments.
-  $options = array();
-  $destination = drupal_get_destination();
-
-  foreach ($comments as $comment) {
-    // Remove the first node title from the node_titles array and attach to
-    // the comment.
-    $node_title = $comment->nid->entity->label();
-    $username = array(
-      '#theme' => 'username',
-      '#account' => comment_prepare_author($comment),
-    );
-    $options[$comment->id()] = array(
-      'title' => array('data' => array('#title' => $comment->subject->value ?: $comment->id())),
-      'subject' => array(
-        'data' => array(
-          '#type' => 'link',
-          '#title' => $comment->subject->value,
-          '#href' => 'comment/' . $comment->id(),
-          '#options' => array('attributes' => array('title' => truncate_utf8($comment->comment_body->value, 128)), 'fragment' => 'comment-' . $comment->id()),
-        ),
-      ),
-      'author' => drupal_render($username),
-      'posted_in' => array(
-        'data' => array(
-          '#type' => 'link',
-          '#title' => $node_title,
-          '#href' => 'node/' . $comment->nid->target_id,
-        ),
-      ),
-      'changed' => format_date($comment->changed->value, 'short'),
-    );
-    $links = array();
-    $links['edit'] = array(
-      'title' => t('edit'),
-      'href' => 'comment/' . $comment->id() . '/edit',
-      'query' => $destination,
-    );
-    if (module_invoke('content_translation', 'translate_access', $comment)) {
-      $links['translate'] = array(
-        'title' => t('translate'),
-        'href' => 'comment/' . $comment->id() . '/translations',
-        'query' => $destination,
-      );
-    }
-    $options[$comment->id()]['operations']['data'] = array(
-      '#type' => 'operations',
-      '#links' => $links,
-    );
-  }
-
-  $form['comments'] = array(
-    '#type' => 'tableselect',
-    '#header' => $header,
-    '#options' => $options,
-    '#empty' => t('No comments available.'),
-  );
-
-  $form['pager'] = array('#theme' => 'pager');
-
-  return $form;
-}
-
-/**
- * Form validation handler for comment_admin_overview().
- *
- * @see comment_admin_overview_submit()
- */
-function comment_admin_overview_validate($form, &$form_state) {
-  $form_state['values']['comments'] = array_diff($form_state['values']['comments'], array(0));
-  // We can't execute any 'Update options' if no comments were selected.
-  if (count($form_state['values']['comments']) == 0) {
-    form_set_error('', t('Select one or more comments to perform the update on.'));
-  }
-}
-
-/**
- * Form submission handler for comment_admin_overview().
- *
- * Executes the chosen 'Update option' on the selected comments, such as
- * publishing, unpublishing or deleting.
- *
- * @see comment_admin_overview_validate()
- */
-function comment_admin_overview_submit($form, &$form_state) {
-  $operation = $form_state['values']['operation'];
-  $cids = $form_state['values']['comments'];
-
-  if ($operation == 'delete') {
-    entity_delete_multiple('comment', $cids);
-  }
-  else {
-    foreach ($cids as $cid => $value) {
-      $comment = comment_load($value);
-
-      if ($operation == 'unpublish') {
-        $comment->status->value = COMMENT_NOT_PUBLISHED;
-      }
-      elseif ($operation == 'publish') {
-        $comment->status->value = COMMENT_PUBLISHED;
-      }
-      $comment->save();
-    }
-  }
-  drupal_set_message(t('The update has been performed.'));
-  $form_state['redirect'] = 'admin/content/comment';
-  cache_invalidate_tags(array('content' => TRUE));
-}
diff --git a/core/modules/comment/lib/Drupal/comment/Controller/CommentController.php b/core/modules/comment/lib/Drupal/comment/Controller/CommentController.php
index 2470b2a..37f7c41 100644
--- a/core/modules/comment/lib/Drupal/comment/Controller/CommentController.php
+++ b/core/modules/comment/lib/Drupal/comment/Controller/CommentController.php
@@ -8,12 +8,12 @@
 namespace Drupal\comment\Controller;
 
 use Drupal\comment\CommentInterface;
-use Drupal\comment\Entity\Comment;
+use Drupal\comment\Form\ConfirmDeleteMultiple;
+use Drupal\comment\Form\CommentAdminOverview;
+use Drupal\node\NodeInterface;
 use Drupal\Core\Access\CsrfTokenGenerator;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
-use Drupal\Node\NodeInterface;
-use Drupal\Core\Session\AccountInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\RedirectResponse;
@@ -44,26 +44,16 @@ class CommentController extends ControllerBase implements ContainerInjectionInte
   protected $csrfToken;
 
   /**
-   * The current user service.
-   *
-   * @var \Drupal\Core\Session\AccountInterface
-   */
-  protected $currentUser;
-
-  /**
    * Constructs a CommentController object.
    *
    * @param \Symfony\Component\HttpKernel\HttpKernelInterface $httpKernel
    *   HTTP kernel to handle requests.
    * @param \Drupal\Core\Access\CsrfTokenGenerator $csrf_token
    *   The CSRF token manager service.
-   * @param \Drupal\Core\Session\AccountInterface $current_user
-   *   The current user service.
    */
-  public function __construct(HttpKernelInterface $httpKernel, CsrfTokenGenerator $csrf_token, AccountInterface $current_user) {
+  public function __construct(HttpKernelInterface $httpKernel, CsrfTokenGenerator $csrf_token) {
     $this->httpKernel = $httpKernel;
     $this->csrfToken = $csrf_token;
-    $this->currentUser = $current_user;
   }
   /**
    * {@inheritdoc}
@@ -71,8 +61,7 @@ public function __construct(HttpKernelInterface $httpKernel, CsrfTokenGenerator
   public static function create(ContainerInterface $container) {
     return new static(
       $container->get('http_kernel'),
-      $container->get('csrf_token'),
-      $container->get('current_user')
+      $container->get('csrf_token')
     );
   }
 
@@ -243,11 +232,11 @@ public function getReplyForm(Request $request, NodeInterface $node, $pid = NULL)
    * @param \Symfony\Component\HttpFoundation\Request $request
    *   The request of the page.
    *
-   * @return Symfony\Component\HttpFoundation\JsonResponse
+   * @return \Symfony\Component\HttpFoundation\JsonResponse
    *   The JSON response.
    */
   public function renderNewCommentsNodeLinks(Request $request) {
-    if ($this->currentUser->isAnonymous()) {
+    if ($this->currentUser()->isAnonymous()) {
       throw new AccessDeniedHttpException();
     }
 
@@ -273,11 +262,22 @@ public function renderNewCommentsNodeLinks(Request $request) {
   }
 
   /**
-   * @todo Remove comment_admin().
+   * Presents an administrative comment listing.
+   *
+   * @param \Symfony\Component\HttpFoundation\Request $request
+   *   The request of the page.
+   * @param string $type
+   *   The type of the overview form ('approval' or 'new').
    */
-  public function adminPage($type) {
-    module_load_include('admin.inc', 'comment');
-    return comment_admin($type);
+  public function adminPage(Request $request, $type) {
+    $edit = $request->request->all();
+
+    if (isset($edit['operation']) && ($edit['operation'] == 'delete') && isset($edit['comments']) && $edit['comments']) {
+      return drupal_get_form(ConfirmDeleteMultiple::create($this->container()), $request);
+    }
+    else {
+      return drupal_get_form(CommentAdminOverview::create($this->container()), $type);
+    }
   }
 
 }
diff --git a/core/modules/comment/lib/Drupal/comment/Form/CommentAdminOverview.php b/core/modules/comment/lib/Drupal/comment/Form/CommentAdminOverview.php
new file mode 100644
index 0000000..234467c
--- /dev/null
+++ b/core/modules/comment/lib/Drupal/comment/Form/CommentAdminOverview.php
@@ -0,0 +1,266 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\comment\Form\CommentAdminOverview.
+ */
+
+namespace Drupal\comment\Form;
+
+use Drupal\comment\CommentStorageControllerInterface;
+use Drupal\Core\Cache\Cache;
+use Drupal\Core\Database\Connection;
+use Drupal\Core\Datetime\Date;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Form\FormBase;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides the comments overview administration form.
+ */
+class CommentAdminOverview extends FormBase {
+
+  /**
+   * The comment storage.
+   *
+   * @var \Drupal\comment\CommentStorageControllerInterface
+   */
+  protected $commentStorage;
+
+  /**
+   * Database service object.
+   *
+   * @var \Drupal\Core\Database\Connection
+   */
+  protected $connection;
+
+  /**
+   * Date service object.
+   *
+   * @var \Drupal\Core\Datetime\Date
+   */
+  protected $date;
+
+  /**
+   * The module handler.
+   *
+   * @var \Drupal\Core\Extension\ModuleHandlerInterface
+   */
+  protected $moduleHandler;
+
+  /**
+   * Creates a CommentAdminOverview form.
+   *
+   * @param \Drupal\comment\CommentStorageControllerInterface $comment_storage
+   *   The comment storage.
+   * @param \Drupal\Core\Database\Connection $connection
+   *   The database service.
+   * @param \Drupal\Core\Datetime\Date $date
+   *   The date service.
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+   *   The module handler.
+   */
+  public function __construct(CommentStorageControllerInterface $comment_storage, Connection $connection, Date $date, ModuleHandlerInterface $module_handler) {
+    $this->commentStorage = $comment_storage;
+    $this->connection = $connection;
+    $this->date = $date;
+    $this->moduleHandler = $module_handler;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('entity.manager')->getStorageController('comment'),
+      $container->get('database'),
+      $container->get('date'),
+      $container->get('module_handler')
+
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormID() {
+    return 'comment_admin_overview';
+  }
+
+  /**
+   * Form constructor for the comment overview administration form.
+   *
+   * @param array $form
+   *   An associative array containing the structure of the form.
+   * @param array $form_state
+   *   An associative array containing the current state of the form.
+   * @param string $type
+   *   The type of the overview form ('approval' or 'new').
+   *
+   * @return array
+   *   The form structure.
+   */
+  public function buildForm(array $form, array &$form_state, $type = 'new') {
+
+    // Build an 'Update options' form.
+    $form['options'] = array(
+      '#type' => 'details',
+      '#title' => $this->t('Update options'),
+      '#attributes' => array('class' => array('container-inline')),
+    );
+
+    if ($type == 'approval') {
+      $options['publish'] = $this->t('Publish the selected comments');
+    }
+    else {
+      $options['unpublish'] = $this->t('Unpublish the selected comments');
+    }
+    $options['delete'] = $this->t('Delete the selected comments');
+
+    $form['options']['operation'] = array(
+      '#type' => 'select',
+      '#title' => $this->t('Action'),
+      '#title_display' => 'invisible',
+      '#options' => $options,
+      '#default_value' => 'publish',
+    );
+    $form['options']['submit'] = array(
+      '#type' => 'submit',
+      '#value' => $this->t('Update'),
+    );
+
+    // Load the comments that need to be displayed.
+    $status = ($type == 'approval') ? COMMENT_NOT_PUBLISHED : COMMENT_PUBLISHED;
+    $header = array(
+      'subject' => array('data' => $this->t('Subject'), 'field' => 'subject'),
+      'author' => array('data' => $this->t('Author'), 'field' => 'name', 'class' => array(RESPONSIVE_PRIORITY_MEDIUM)),
+      'posted_in' => array('data' => $this->t('Posted in'), 'field' => 'node_title', 'class' => array(RESPONSIVE_PRIORITY_LOW)),
+      'changed' => array('data' => $this->t('Updated'), 'field' => 'c.changed', 'sort' => 'desc', 'class' => array(RESPONSIVE_PRIORITY_LOW)),
+      'operations' => $this->t('Operations'),
+    );
+
+    $query = $this->connection->select('comment', 'c')
+      ->extend('\Drupal\Core\Database\Query\PagerSelectExtender')
+      ->extend('\Drupal\Core\Database\Query\TableSortExtender');
+    $query->join('node_field_data', 'n', 'n.nid = c.nid');
+    $query->addTag('node_access');
+    $result = $query
+      ->fields('c', array('cid', 'nid', 'subject', 'name', 'changed'))
+      ->condition('c.status', $status)
+      ->limit(50)
+      ->orderByHeader($header)
+      ->execute();
+
+    $cids = array();
+
+    // We collect a sorted list of node_titles during the query to attach to the
+    // comments later.
+    foreach ($result as $row) {
+      $cids[] = $row->cid;
+    }
+    $comments = $this->commentStorage->loadMultiple($cids);
+
+    // Build a table listing the appropriate comments.
+    $options = array();
+    $destination = drupal_get_destination();
+
+    foreach ($comments as $comment) {
+      // Remove the first node title from the node_titles array and attach to
+      // the comment.
+      $node_title = $comment->nid->entity->label();
+      $username = array(
+        '#theme' => 'username',
+        '#account' => comment_prepare_author($comment),
+      );
+      $options[$comment->id()] = array(
+        'title' => array('data' => array('#title' => $comment->subject->value ?: $comment->id())),
+        'subject' => array(
+          'data' => array(
+            '#type' => 'link',
+            '#title' => $comment->subject->value,
+            '#href' => 'comment/' . $comment->id(),
+            '#options' => array('attributes' => array('title' => truncate_utf8($comment->comment_body->value, 128)), 'fragment' => 'comment-' . $comment->id()),
+          ),
+        ),
+        'author' => drupal_render($username),
+        'posted_in' => array(
+          'data' => array(
+            '#type' => 'link',
+            '#title' => $node_title,
+            '#href' => 'node/' . $comment->nid->target_id,
+          ),
+        ),
+        'changed' => $this->date->format($comment->changed->value, 'short'),
+      );
+      $links = array();
+      $links['edit'] = array(
+        'title' => $this->t('edit'),
+        'href' => 'comment/' . $comment->id() . '/edit',
+        'query' => $destination,
+      );
+      if ($this->moduleHandler->invoke('content_translation', 'translate_access', $comment)) {
+        $links['translate'] = array(
+          'title' => $this->t('translate'),
+          'href' => 'comment/' . $comment->id() . '/translations',
+          'query' => $destination,
+        );
+      }
+      $options[$comment->id()]['operations']['data'] = array(
+        '#type' => 'operations',
+        '#links' => $links,
+      );
+    }
+
+    $form['comments'] = array(
+      '#type' => 'tableselect',
+      '#header' => $header,
+      '#options' => $options,
+      '#empty' => $this->t('No comments available.'),
+    );
+
+    $form['pager'] = array('#theme' => 'pager');
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function validateForm(array &$form, array &$form_state){
+    $form_state['values']['comments'] = array_diff($form_state['values']['comments'], array(0));
+    // We can't execute any 'Update options' if no comments were selected.
+    if (count($form_state['values']['comments']) == 0) {
+      form_set_error('', $this->t('Select one or more comments to perform the update on.'));
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, array &$form_state) {
+    $operation = $form_state['values']['operation'];
+    $cids = $form_state['values']['comments'];
+
+    if ($operation == 'delete') {
+      $comments = $this->commentStorage->loadMultiple($cids);
+      $this->commentStorage->delete($comments);
+    }
+    else {
+      foreach ($cids as $cid) {
+        $comment = $this->commentStorage->load($cid);
+
+        if ($operation == 'unpublish') {
+          $comment->status->value = COMMENT_NOT_PUBLISHED;
+        }
+        elseif ($operation == 'publish') {
+          $comment->status->value = COMMENT_PUBLISHED;
+        }
+        $comment->save();
+      }
+    }
+    drupal_set_message($this->t('The update has been performed.'));
+    $form_state['redirect'] = 'admin/content/comment';
+    Cache::invalidateTags(array('content' => TRUE));
+  }
+
+}
diff --git a/core/modules/comment/lib/Drupal/comment/Form/ConfirmDeleteMultiple.php b/core/modules/comment/lib/Drupal/comment/Form/ConfirmDeleteMultiple.php
index 08fb6d0..100fecc 100644
--- a/core/modules/comment/lib/Drupal/comment/Form/ConfirmDeleteMultiple.php
+++ b/core/modules/comment/lib/Drupal/comment/Form/ConfirmDeleteMultiple.php
@@ -2,7 +2,7 @@
 
 /**
  * @file
- * Contains \Drupal\comment\Form\DeleteConfirmMultiple.
+ * Contains \Drupal\comment\Form\ConfirmDeleteMultiple.
  */
 
 namespace Drupal\comment\Form;
@@ -71,6 +71,9 @@ public function getQuestion() {
    * {@inheritdoc}
    */
   public function getCancelRoute() {
+    return array(
+      'route_name' => 'comment.admin',
+    );
   }
 
   /**
@@ -111,11 +114,7 @@ public function buildForm(array $form, array &$form_state, Request $request = NU
       $form_state['redirect'] = 'admin/content/comment';
     }
 
-    $form = parent::buildForm($form, $form_state);
-
-    // @todo Convert to getCancelRoute() after http://drupal.org/node/1986606.
-    $form['actions']['cancel']['#href'] = 'admin/content/comment';
-    return $form;
+    return parent::buildForm($form, $form_state);
   }
 
   /**