app/code/Magento/Ui/Model/Manager.php

app/code/Magento/Ui/Test/Unit/Model/ManagerTest.php

lib/internal/Magento/Framework/App/Http/Context.php

lib/internal/Magento/Framework/App/PageCache/Kernel.php

...rnal/Magento/Framework/App/Test/Unit/Http/ContextTest.php

.../Magento/Framework/App/Test/Unit/PageCache/KernelTest.php

lib/internal/Magento/Framework/View/Layout.php

...rnal/Magento/Framework/View/Layout/ScheduledStructure.php

...internal/Magento/Framework/View/Page/Config/Structure.php

lib/internal/Magento/Framework/View/Test/Unit/LayoutTest.php