diff --git a/core/modules/field_ui/lib/Drupal/field_ui/FieldOverview.php b/core/modules/field_ui/lib/Drupal/field_ui/FieldOverview.php
index d4c392c..dce6ccb 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/FieldOverview.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/FieldOverview.php
@@ -1,5 +1,4 @@
 <?php
-
 /**
  * @file
  * Contains \Drupal\field_ui\FieldOverview.
@@ -9,6 +8,7 @@
 
 use Drupal\Core\Entity\EntityManager;
 use Drupal\Core\Entity\Field\FieldTypePluginManager;
+use Drupal\Core\Extension\ModuleHandlerInterface;
 use Drupal\field_ui\OverviewBase;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Drupal\field\Plugin\Core\Entity\Field;
@@ -19,6 +19,36 @@
 class FieldOverview extends OverviewBase {
 
   /**
+   * The module handler service.
+   *
+   * @var \Drupal\Core\Extension\ModuleHandlerInterface
+   */
+  protected $moduleHandler;
+
+  /**
+   * Constructs a new field overview.
+   *
+   * @param \Drupal\Core\Entity\EntityManager $entity_manager
+   *   The entity manager.
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+   *   The module handler to invoke hooks on.
+   */
+  public function __construct(EntityManager $entity_manager, ModuleHandlerInterface $module_handler) {
+    parent::__construct($entity_manager);
+    $this->moduleHandler = $module_handler;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('plugin.manager.entity'),
+      $container->get('module_handler')
+    );
+  }
+
+  /**
    *  The field type manager.
    *
    * @var \Drupal\Core\Entity\Field\FieldTypePluginManager
@@ -142,6 +172,8 @@ public function buildForm(array $form, array &$form_state, $entity_type = NULL,
         'href' => "$admin_field_path/delete",
         'attributes' => array('title' => t('Delete instance.')),
       );
+      // Allow altering the operations on this entity listing.
+      $this->moduleHandler->alter('entity_operation', $links, $instance);
       $table[$name]['operations']['data'] = array(
         '#type' => 'operations',
         '#links' => $links,
@@ -174,7 +206,7 @@ public function buildForm(array $form, array &$form_state, $entity_type = NULL,
           '#title_display' => 'invisible',
           '#size' => 15,
           '#description' => t('Label'),
-          '#prefix' => '<div class="label-input"><div class="add-new-placeholder">' . t('Add new field') .'</div>',
+          '#prefix' => '<div class="label-input"><div class="add-new-placeholder">' . t('Add new field') . '</div>',
           '#suffix' => '</div>',
         ),
         'field_name' => array(
@@ -244,7 +276,7 @@ public function buildForm(array $form, array &$form_state, $entity_type = NULL,
           '#size' => 15,
           '#description' => t('Label'),
           '#attributes' => array('class' => array('label-textfield')),
-          '#prefix' => '<div class="label-input"><div class="add-new-placeholder">' . t('Re-use existing field') .'</div>',
+          '#prefix' => '<div class="label-input"><div class="add-new-placeholder">' . t('Re-use existing field') . '</div>',
           '#suffix' => '</div>',
         ),
         'field_name' => array(
@@ -401,14 +433,17 @@ public function submitForm(array &$form, array &$form_state) {
 
         // Always show the field settings step, as the cardinality needs to be
         // configured for new fields.
-        $destinations[] = $this->adminPath. '/fields/' . $new_instance->id() . '/field';
+        $destinations[] = $this->adminPath . '/fields/' . $new_instance->id() . '/field';
         $destinations[] = $this->adminPath . '/fields/' . $new_instance->id();
 
         // Store new field information for any additional submit handlers.
         $form_state['fields_added']['_add_new_field'] = $field['field_name'];
       }
       catch (\Exception $e) {
-        drupal_set_message(t('There was a problem creating field %label: !message', array('%label' => $instance['label'], '!message' => $e->getMessage())), 'error');
+        drupal_set_message(t('There was a problem creating field %label: !message', array(
+          '%label' => $instance['label'],
+          '!message' => $e->getMessage()
+        )), 'error');
       }
     }
 
@@ -450,7 +485,10 @@ public function submitForm(array &$form, array &$form_state) {
           $form_state['fields_added']['_add_existing_field'] = $instance['field_name'];
         }
         catch (\Exception $e) {
-          drupal_set_message(t('There was a problem creating field instance %label: @message.', array('%label' => $instance['label'], '@message' => $e->getMessage())), 'error');
+          drupal_set_message(t('There was a problem creating field instance %label: @message.', array(
+            '%label' => $instance['label'],
+            '@message' => $e->getMessage()
+          )), 'error');
         }
       }
     }
@@ -494,7 +532,8 @@ protected function getExistingFieldOptions() {
             if (empty($field['locked'])
               && !field_info_instance($this->entity_type, $field['field_name'], $this->bundle)
               && (empty($field['entity_types']) || in_array($this->entity_type, $field['entity_types']))
-              && empty($field_types[$field['type']]['no_ui'])) {
+              && empty($field_types[$field['type']]['no_ui'])
+            ) {
               $info[$instance['field_name']] = array(
                 'type' => $field['type'],
                 'type_label' => $field_types[$field['type']]['label'],