43 files declare their use of ControllerInterface

ActionAdminManageForm.php in drupal/core/modules/action/lib/Drupal/action/Form/ActionAdminManageForm.php
Contains \Drupal\action\Form\ActionAdminManageForm.
AdminController.php in drupal/core/modules/system/lib/Drupal/system/Controller/AdminController.php
Contains \Drupal\system\Controller\AdminController.
AggregatorController.php in drupal/core/modules/aggregator/lib/Drupal/aggregator/Controller/AggregatorController.php
Contains \Drupal\aggregator\Controller\AggregatorController.
BanAdmin.php in drupal/core/modules/ban/lib/Drupal/ban/Form/BanAdmin.php
Contains \Drupal\ban\Form\BanAdmin.
BanDelete.php in drupal/core/modules/ban/lib/Drupal/ban/Form/BanDelete.php
Contains \Drupal\ban\Form\BanDelete.
BookController.php in drupal/core/modules/book/lib/Drupal/book/Controller/BookController.php
Contains \Drupal\book\Controller\BookController.
BreakLockForm.php in drupal/core/modules/views_ui/lib/Drupal/views_ui/Form/BreakLockForm.php
Contains \Drupal\views_ui\Form\BreakLockForm.
CommonTestController.php in drupal/core/modules/system/tests/modules/common_test/lib/Drupal/common_test/Controller/CommonTestController.php
Contains \Drupal\common_test\Controller\CommonTestController.
ConfigController.php in drupal/core/modules/config/lib/Drupal/config/Controller/ConfigController.php
Contains \Drupal\config\Controller\ConfigController
CustomBlockController.php in drupal/core/modules/block/custom_block/lib/Drupal/custom_block/Controller/CustomBlockController.php
Contains \Drupal\custom_block\Controller\CustomBlockController
DateFormatDeleteForm.php in drupal/core/modules/system/lib/Drupal/system/Form/DateFormatDeleteForm.php
Contains \Drupal\system\Form\DateFormatDeleteForm.
DateFormatEditForm.php in drupal/core/modules/system/lib/Drupal/system/Form/DateFormatEditForm.php
Contains \Drupal\system\Form\DateFormatEditForm.
DateFormatLocalizeResetForm.php in drupal/core/modules/system/lib/Drupal/system/Form/DateFormatLocalizeResetForm.php
Contains \Drupal\system\Form\DateFormatLocalizeResetForm.
DbLogController.php in drupal/core/modules/dblog/lib/Drupal/dblog/Controller/DbLogController.php
Contains \Drupal\dblog\Controller\DbLogController.
DeleteForm.php in drupal/core/modules/path/lib/Drupal/path/Form/DeleteForm.php
Contains \Drupal\path\Form\DeleteForm.
DeleteMultiple.php in drupal/core/modules/node/lib/Drupal/node/Form/DeleteMultiple.php
Contains \Drupal\node\Form\DeleteMultiple.
DesignTestController.php in drupal/core/modules/system/tests/modules/design_test/lib/Drupal/design_test/Controller/DesignTestController.php
Contains \Drupal\design_test\Controller\DesignTestController.
EntityListController.php in drupal/core/lib/Drupal/Core/Entity/Controller/EntityListController.php
Contains \Drupal\Core\Entity\Controller\EntityListController.
EntityReferenceController.php in drupal/core/modules/entity_reference/lib/Drupal/entity_reference/EntityReferenceController.php
Contains \Drupal\entity_reference/EntityReferenceController.
FieldDeleteForm.php in drupal/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldDeleteForm.php
Contains \Drupal\field_ui\Form\FieldDeleteForm.
FieldEditForm.php in drupal/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldEditForm.php
Contains \Drupal\field_ui\Form\FieldEditForm.
FieldInstanceFormBase.php in drupal/core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceFormBase.php
Contains \Drupal\field_ui\Form\FieldInstanceFormBase.
FormTestControllerObject.php in drupal/core/modules/system/tests/modules/form_test/lib/Drupal/form_test/FormTestControllerObject.php
Contains \Drupal\form_test\FormTestControllerObject.
HelpController.php in drupal/core/modules/help/lib/Drupal/help/Controller/HelpController.php
Contains \Drupal\help\Controller\HelpController.
LanguageTestController.php in drupal/core/modules/language/tests/language_test/lib/Drupal/language_test/Controller/LanguageTestController.php
Contains \Drupal\language_test\Controller\LanguageTestController.
LayoutController.php in drupal/core/modules/layout/lib/Drupal/layout/Controller/LayoutController.php
Contains \Drupal\layout\Controller\LayoutController.
LayoutTestController.php in drupal/core/modules/layout/tests/lib/Drupal/layout_test/Controller/LayoutTestController.php
Contains \Drupal\layout_test\Controller\LayoutTestController.
MachineNameController.php in drupal/core/modules/system/lib/Drupal/system/MachineNameController.php
Contains \Drupal\system\MachineNameController.
OpmlFeedAdd.php in drupal/core/modules/aggregator/lib/Drupal/aggregator/Form/OpmlFeedAdd.php
Contains \Drupal\aggregator\Form\OpmlFeedAdd.
OverviewBase.php in drupal/core/modules/field_ui/lib/Drupal/field_ui/OverviewBase.php
Contains \Drupal\field_ui\OverviewBase.
SetDelete.php in drupal/core/modules/shortcut/lib/Drupal/shortcut/Form/SetDelete.php
Contains \Drupal\shortcut\Form\SetDelete.
ShortcutController.php in drupal/core/modules/shortcut/lib/Drupal/shortcut/Controller/ShortcutController.php
Contains \Drupal\shortcut\Controller\ShortCutController.
SimpletestResultsForm.php in drupal/core/modules/simpletest/lib/Drupal/simpletest/Form/SimpletestResultsForm.php
Contains \Drupal\simpletest\Form\SimpletestResultsForm.
SystemConfigFormBase.php in drupal/core/modules/system/lib/Drupal/system/SystemConfigFormBase.php
Contains \Drupal\system\SystemConfigFormBase.
SystemInfoController.php in drupal/core/modules/system/lib/Drupal/system/Controller/SystemInfoController.php
Contains \Drupal\system\Controller\SystemInfoController.
ThemeController.php in drupal/core/modules/system/lib/Drupal/system/Controller/ThemeController.php
Contains \Drupal\system\Controller\ThemeController.
TourTestController.php in drupal/core/modules/tour/tests/tour_test/lib/Drupal/tour_test/Controller/TourTestController.php
Contains \Drupal\tour_test\Controller\TourTestController.
TwigThemeTestController.php in drupal/core/modules/system/tests/modules/twig_theme_test/lib/Drupal/twig_theme_test/TwigThemeTestController.php
Contains \Drupal\twig_theme_test\TwigThemeTestController.
UpdateController.php in drupal/core/modules/update/lib/Drupal/update/Controller/UpdateController.php
Contains \Drupal\update\Controller\UpdateController.
UserAutocompleteController.php in drupal/core/modules/user/lib/Drupal/user/Controller/UserAutocompleteController.php
Contains \Drupal\user\Controller\UserAutocompleteController.
UserController.php in drupal/core/modules/user/lib/Drupal/user/Controller/UserController.php
Contains \Drupal\user\Controller\UserController.
ViewPageController.php in drupal/core/modules/views/lib/Drupal/views/Routing/ViewPageController.php
Contains \Drupal\views\Routing\ViewPageController.
ViewsUIController.php in drupal/core/modules/views_ui/lib/Drupal/views_ui/Controller/ViewsUIController.php
Contains \Drupal\views_ui\Controller\ViewsUIController.