41 files declare their use of TrustedCallbackInterface

AccountForm.php in core/modules/user/src/AccountForm.php
AddFormBase.php in core/modules/media_library/src/Form/AddFormBase.php
BigPipeRegressionTestController.php in core/modules/big_pipe/tests/modules/big_pipe_regression_test/src/BigPipeRegressionTestController.php
BigPipeTestController.php in core/modules/big_pipe/tests/modules/big_pipe_test/src/BigPipeTestController.php
BlockViewBuilder.php in core/modules/block/src/BlockViewBuilder.php
ClaroPreRender.php in core/themes/claro/src/ClaroPreRender.php
CommentLazyBuilders.php in core/modules/comment/src/CommentLazyBuilders.php
Datelist.php in core/lib/Drupal/Core/Datetime/Element/Datelist.php
DatelistElementFormTest.php in core/tests/Drupal/KernelTests/Core/Datetime/DatelistElementFormTest.php
Datetime.php in core/lib/Drupal/Core/Datetime/Element/Datetime.php
DatetimeElementFormTest.php in core/tests/Drupal/KernelTests/Core/Datetime/DatetimeElementFormTest.php
DoTrustedCallbackTraitTest.php in core/tests/Drupal/Tests/Core/Security/DoTrustedCallbackTraitTest.php
Element.php in core/modules/editor/src/Element.php
EntityViewBuilder.php in core/lib/Drupal/Core/Entity/EntityViewBuilder.php
EntityViewController.php in core/lib/Drupal/Core/Entity/Controller/EntityViewController.php
FilterTestPlaceholders.php in core/modules/filter/tests/filter_test/src/Plugin/Filter/FilterTestPlaceholders.php
FormBuilder.php in core/lib/Drupal/Core/Form/FormBuilder.php
FormTestInputForgeryForm.php in core/modules/system/tests/modules/form_test/src/Form/FormTestInputForgeryForm.php
MediaEmbed.php in core/modules/media/src/Plugin/Filter/MediaEmbed.php
MediaLibraryWidget.php in core/modules/media_library/src/Plugin/Field/FieldWidget/MediaLibraryWidget.php
NodeSearch.php in core/modules/node/src/Plugin/Search/NodeSearch.php
NodeViewBuilder.php in core/modules/node/src/NodeViewBuilder.php
OliveroPreRender.php in core/themes/olivero/src/OliveroPreRender.php
PagerTestController.php in core/modules/system/tests/modules/pager_test/src/Controller/PagerTestController.php
PluginBase.php in core/modules/views/src/Plugin/views/PluginBase.php
Renderer.php in core/lib/Drupal/Core/Render/Renderer.php
RendererBubblingTest.php in core/tests/Drupal/Tests/Core/Render/RendererBubblingTest.php
Contains \Drupal\Tests\Core\Render\RendererBubblingTest.
RendererPlaceholdersTest.php in core/tests/Drupal/Tests/Core/Render/RendererPlaceholdersTest.php
Contains \Drupal\Tests\Core\Render\RendererPlaceholdersTest.
RendererTest.php in core/tests/Drupal/Tests/Core/Render/RendererTest.php
Contains \Drupal\Tests\Core\Render\RendererTest.
RendererTestBase.php in core/tests/Drupal/Tests/Core/Render/RendererTestBase.php
Contains \Drupal\Tests\Core\Render\RendererTestBase.
RenderPlaceholderMessageTestController.php in core/modules/system/tests/modules/render_placeholder_message_test/src/RenderPlaceholderMessageTestController.php
RouteProcessorCsrf.php in core/lib/Drupal/Core/Access/RouteProcessorCsrf.php
ShortcutLazyBuilders.php in core/modules/shortcut/src/ShortcutLazyBuilders.php
SystemTestController.php in core/modules/system/tests/modules/system_test/src/Controller/SystemTestController.php
TextTrimmedFormatter.php in core/modules/text/src/Plugin/Field/FieldFormatter/TextTrimmedFormatter.php
ToolbarController.php in core/modules/toolbar/src/Controller/ToolbarController.php
ToolbarLinkBuilder.php in core/modules/user/src/ToolbarLinkBuilder.php
Url.php in core/lib/Drupal/Core/Url.php
UserLoginBlock.php in core/modules/user/src/Plugin/Block/UserLoginBlock.php
ViewsFormMainForm.php in core/modules/views/src/Form/ViewsFormMainForm.php
ViewsTestDataController.php in core/modules/views/tests/modules/views_test_data/src/Controller/ViewsTestDataController.php

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