13 files declare their use of WorkspaceManagerInterface

ActiveWorkspaceCheck.php in core/modules/workspaces/src/Access/ActiveWorkspaceCheck.php
ActiveWorkspaceCheckTest.php in core/modules/workspaces/tests/src/Unit/ActiveWorkspaceCheckTest.php
EntityReferenceSupportedNewEntitiesConstraintValidator.php in core/modules/workspaces/src/Plugin/Validation/Constraint/EntityReferenceSupportedNewEntitiesConstraintValidator.php
EntitySchemaSubscriber.php in core/modules/workspaces/src/EventSubscriber/EntitySchemaSubscriber.php
EntityWorkspaceConflictConstraintValidator.php in core/modules/workspaces/src/Plugin/Validation/Constraint/EntityWorkspaceConflictConstraintValidator.php
PgsqlQueryFactory.php in core/modules/workspaces/src/EntityQuery/PgsqlQueryFactory.php
QueryFactory.php in core/modules/workspaces/src/EntityQuery/QueryFactory.php
QueryTrait.php in core/modules/workspaces/src/EntityQuery/QueryTrait.php
SwitchToLiveForm.php in core/modules/workspaces/src/Form/SwitchToLiveForm.php
WorkspaceActivateForm.php in core/modules/workspaces/src/Form/WorkspaceActivateForm.php
WorkspaceRequestSubscriber.php in core/modules/workspaces/src/EventSubscriber/WorkspaceRequestSubscriber.php
WorkspaceRequestSubscriberTest.php in core/modules/workspaces/tests/src/Unit/WorkspaceRequestSubscriberTest.php
WorkspaceSwitcherForm.php in core/modules/workspaces/src/Form/WorkspaceSwitcherForm.php

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