12 files declare their use of ResponsePolicyInterface in Zircon Profile 8

ChainResponsePolicyTest.php in core/tests/Drupal/Tests/Core/PageCache/ChainResponsePolicyTest.php

Contains \Drupal\Tests\Core\PageCache\ChainResponsePolicyTest.

DenyAdminRoutes.php in core/modules/dynamic_page_cache/src/PageCache/ResponsePolicy/DenyAdminRoutes.php

Contains \Drupal\dynamic_page_cache\PageCache\ResponsePolicy\DenyAdminRoutes.

DenyNoCacheRoutes.php in core/lib/Drupal/Core/PageCache/ResponsePolicy/DenyNoCacheRoutes.php

Contains \Drupal\Core\PageCache\ResponsePolicy\DenyNoCacheRoutes.

DenyNodePreview.php in core/modules/node/src/PageCache/DenyNodePreview.php

Contains \Drupal\node\PageCache\DenyNodePreview.

DenyNodePreviewTest.php in core/modules/node/tests/src/Unit/PageCache/DenyNodePreviewTest.php

Contains \Drupal\Tests\node\Unit\PageCache\DenyNodePreviewTest.

DenyPrivateImageStyleDownload.php in core/modules/image/src/PageCache/DenyPrivateImageStyleDownload.php

Contains \Drupal\image\PageCache\DenyPrivateImageStyleDownload.

DenyPrivateImageStyleDownloadTest.php in core/modules/image/tests/src/Unit/PageCache/DenyPrivateImageStyleDownloadTest.php

Contains \Drupal\Tests\image\Unit\PageCache\DenyPrivateImageStyleDownloadTest.

DynamicPageCacheSubscriber.php in core/modules/dynamic_page_cache/src/EventSubscriber/DynamicPageCacheSubscriber.php

Contains \Drupal\dynamic_page_cache\EventSubscriber\DynamicPageCacheSubscriber.

FinishResponseSubscriber.php in core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php

Contains \Drupal\Core\EventSubscriber\FinishResponseSubscriber.

KillSwitch.php in core/lib/Drupal/Core/PageCache/ResponsePolicy/KillSwitch.php

Contains \Drupal\Core\PageCache\ResponsePolicy\KillSwitch.

NoServerError.php in core/lib/Drupal/Core/PageCache/ResponsePolicy/NoServerError.php

Contains \Drupal\Core\PageCache\ResponsePolicy\NoServerError.

PageCache.php in core/modules/page_cache/src/StackMiddleware/PageCache.php

Contains \Drupal\page_cache\StackMiddleware\PageCache.