16 files declare their use of EntityFormController

AccountFormController.php in drupal/core/modules/user/lib/Drupal/user/AccountFormController.php
Definition of Drupal\user\AccountFormController.
ActionFormControllerBase.php in drupal/core/modules/action/lib/Drupal/action/ActionFormControllerBase.php
Contains Drupal\action\ActionEditFormController.
BlockFormController.php in drupal/core/modules/block/lib/Drupal/block/BlockFormController.php
Contains \Drupal\block\BlockFormController.
CategoryFormController.php in drupal/core/modules/contact/lib/Drupal/contact/CategoryFormController.php
Definition of Drupal\contact\CategoryFormController.
ConfigTestFormController.php in drupal/core/modules/config/tests/config_test/lib/Drupal/config_test/ConfigTestFormController.php
Contains Drupal\config_test\ConfigTestFormController.
CustomBlockTypeFormController.php in drupal/core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockTypeFormController.php
Contains \Drupal\custom_block\CustomBlockTypeFormController.
MenuFormController.php in drupal/core/modules/menu/lib/Drupal/menu/MenuFormController.php
Contains Drupal\menu\MenuFormController.
MenuLinkFormController.php in drupal/core/modules/menu_link/lib/Drupal/menu_link/MenuLinkFormController.php
Contains \Drupal\menu_link\MenuLinkFormController.
MessageFormController.php in drupal/core/modules/contact/lib/Drupal/contact/MessageFormController.php
Definition of Drupal\contact\MessageFormController.
NodeFormController.php in drupal/core/modules/node/lib/Drupal/node/NodeFormController.php
Definition of Drupal\node\NodeFormController.
PictureMappingFormController.php in drupal/core/modules/picture/lib/Drupal/picture/PictureMappingFormController.php
Contains Drupal\picture\PictureFormController.
RoleFormController.php in drupal/core/modules/user/lib/Drupal/user/RoleFormController.php
Contains \Drupal\user\RoleFormController.
ShortcutFormController.php in drupal/core/modules/shortcut/lib/Drupal/shortcut/ShortcutFormController.php
Contains \Drupal\shortcut\ShortcutFormController.
TestEntityFormController.php in drupal/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/TestEntityFormController.php
Definition of Drupal\field_test\TestEntityFormController.
ViewFormControllerBase.php in drupal/core/modules/views_ui/lib/Drupal/views_ui/ViewFormControllerBase.php
Contains Drupal\views_ui\ViewFormControllerBase.
VocabularyFormController.php in drupal/core/modules/taxonomy/lib/Drupal/taxonomy/VocabularyFormController.php
Definition of Drupal\taxonomy\VocabularyFormController.