diff --git a/core/modules/entity/lib/Drupal/entity/EntityFormDisplayInterface.php b/core/modules/entity/lib/Drupal/entity/EntityFormDisplayInterface.php
index 7f6e61a..1717b55 100644
--- a/core/modules/entity/lib/Drupal/entity/EntityFormDisplayInterface.php
+++ b/core/modules/entity/lib/Drupal/entity/EntityFormDisplayInterface.php
@@ -14,4 +14,17 @@
  */
 interface EntityFormDisplayInterface extends EntityDisplayBaseInterface {
 
+
+  /**
+   * Returns the definition of a renderer plugin for the given field (e.g.
+   * widget, formatter).
+   *
+   * @param string $field_name
+   *   The name of the field.
+   *
+   * @return array|null
+   *   The widget or formatter plugin, or NULL if the field does not exist.
+   */
+  public function getRendererDefinition($field_name);
+
 }
diff --git a/core/modules/entity/lib/Drupal/entity/Plugin/Core/Entity/EntityFormDisplay.php b/core/modules/entity/lib/Drupal/entity/Plugin/Core/Entity/EntityFormDisplay.php
index 9a3f0a6..dfcedc0 100644
--- a/core/modules/entity/lib/Drupal/entity/Plugin/Core/Entity/EntityFormDisplay.php
+++ b/core/modules/entity/lib/Drupal/entity/Plugin/Core/Entity/EntityFormDisplay.php
@@ -45,6 +45,14 @@ public function __construct(array $values, $entity_type) {
   /**
    * {@inheritdoc}
    */
+  public function getRendererDefinition($field_name) {
+    $options = getComponent($field_name);
+    return $this->pluginManager->getDefinition($options['type']);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
   public function getRenderer($field_name) {
     if (isset($this->plugins[$field_name])) {
       return $this->plugins[$field_name];
diff --git a/core/modules/field/field.info.inc b/core/modules/field/field.info.inc
index b6b2a95..9f5ed87 100644
--- a/core/modules/field/field.info.inc
+++ b/core/modules/field/field.info.inc
@@ -113,29 +113,6 @@ function _field_info_collate_types_reset() {
 }
 
 /**
- * Determines the behavior of a widget with respect to an operation.
- *
- * @param string $op
- *   The name of the operation. Currently supported: 'default_value',
- *   'multiple_values'.
- * @param array $instance
- *   The field instance array.
- *
- * @return int
- *   One of these values:
- *   - FIELD_BEHAVIOR_NONE: Do nothing for this operation.
- *   - FIELD_BEHAVIOR_CUSTOM: Use the widget's callback function.
- *   - FIELD_BEHAVIOR_DEFAULT: Use field.module default behavior.
- */
-function field_behaviors_widget($op, $instance) {
-  $info = array();
-  if ($component = entity_get_form_display($instance['entity_type'], $instance['bundle'], 'default')->getComponent($instance['field_name'])) {
-    $info = field_info_widget_types($component['type']);
-  }
-  return isset($info[$op]) ? $info[$op] : FIELD_BEHAVIOR_DEFAULT;
-}
-
-/**
  * Returns a lightweight map of fields across bundles.
  *
  * The function only returns active, non deleted fields.
diff --git a/core/modules/field/lib/Drupal/field/FieldInfo.php b/core/modules/field/lib/Drupal/field/FieldInfo.php
index e7e46b9..aedd96b 100644
--- a/core/modules/field/lib/Drupal/field/FieldInfo.php
+++ b/core/modules/field/lib/Drupal/field/FieldInfo.php
@@ -575,7 +575,9 @@ public function prepareInstance($instance, $field_type) {
     $instance['settings'] += field_info_instance_settings($field_type);
 
     // Set a default value for the instance.
-    if (field_behaviors_widget('default value', $instance) == FIELD_BEHAVIOR_DEFAULT && !isset($instance['default_value'])) {
+    $formDisplay = entity_get_form_display($instance['entity_type'], $instance['bundle'], 'default');
+    $rendererDefinition = $formDisplay->getRendererDefinition($instance['field_name']);
+    if ($rendererDefinition['default_value'] == FIELD_BEHAVIOR_DEFAULT && !isset($instance['default_value'])) {
       $instance['default_value'] = NULL;
     }
 
diff --git a/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php b/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php
index 26264ac..afe7e08 100644
--- a/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php
+++ b/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php
@@ -104,7 +104,9 @@ public function buildForm(array $form, array &$form_state, FieldInstanceInterfac
     $form['instance']['settings']['#weight'] = 10;
 
     // Add handling for default value if not provided by any other module.
-    if (field_behaviors_widget('default_value', $this->instance) == FIELD_BEHAVIOR_DEFAULT && empty($this->instance['default_value_function'])) {
+    $formDisplay = entity_get_form_display($this->instance['entity_type'], $this->instance['bundle'], 'default');
+    $rendererDefinition = $formDisplay->getRendererDefinition($instance['field_name']);
+    if ($rendererDefinition['default_value'] == FIELD_BEHAVIOR_DEFAULT && empty($this->instance['default_value_function'])) {
       $form['instance']['default_value_widget'] = $this->getDefaultValueWidget($field, $form, $form_state);
     }