10 files declare their use of ConfigEntityListController

ActionListController.php in drupal/core/modules/action/lib/Drupal/action/ActionListController.php
Contains \Drupal\action\ActionListController.
BlockListController.php in drupal/core/modules/block/lib/Drupal/block/BlockListController.php
Contains \Drupal\block\BlockListController.
CategoryListController.php in drupal/core/modules/contact/lib/Drupal/contact/CategoryListController.php
CustomBlockTypeListController.php in drupal/core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockTypeListController.php
Contains \Drupal\custom_block\CustomBlockTypeListController.
MenuListController.php in drupal/core/modules/menu/lib/Drupal/menu/MenuListController.php
PictureMappingListController.php in drupal/core/modules/picture/lib/Drupal/picture/PictureMappingListController.php
Contains Drupal\picture\PictureListController.
RoleListController.php in drupal/core/modules/user/lib/Drupal/user/RoleListController.php
Contains \Drupal\user\RoleListController.
ShortcutListController.php in drupal/core/modules/shortcut/lib/Drupal/shortcut/ShortcutListController.php
ViewListController.php in drupal/core/modules/views_ui/lib/Drupal/views_ui/ViewListController.php
Definition of Drupal\views_ui\ViewListController.
VocabularyListController.php in drupal/core/modules/taxonomy/lib/Drupal/taxonomy/VocabularyListController.php
Contains \Drupal\taxonomy\VocabularyListController.