app/code/Magento/Checkout/etc/webapi.xml

...eckout/view/frontend/web/js/model/resource-url-manager.js

...ento/Quote/Api/GuestShippingMethodManagementInterface.php

...e/Magento/Quote/Api/ShippingMethodManagementInterface.php

.../Quote/Model/GuestCart/GuestShippingAddressManagement.php

...del/GuestCart/GuestShippingAddressManagementInterface.php

...o/Quote/Model/GuestCart/GuestShippingMethodManagement.php

...odel/GuestCart/GuestShippingMethodManagementInterface.php

app/code/Magento/Quote/Model/ShippingAddressManagement.php

...agento/Quote/Model/ShippingAddressManagementInterface.php

app/code/Magento/Quote/Model/ShippingMethodManagement.php

...Magento/Quote/Model/ShippingMethodManagementInterface.php

...it/Model/GuestCart/GuestShippingAddressManagementTest.php

app/code/Magento/Quote/etc/di.xml

app/code/Magento/Quote/etc/webapi.xml

.../Magento/Quote/Api/GuestShippingAddressManagementTest.php

...e/Magento/Quote/Api/GuestShippingMethodManagementTest.php

...suite/Magento/Quote/Api/ShippingAddressManagementTest.php

...tsuite/Magento/Quote/Api/ShippingMethodManagementTest.php

...app/Magento/Sales/Test/Handler/OrderInjectable/Webapi.php