Replace deprecated constant with new class constant

apps/files/ajax/upload.php

apps/files_encryption/tests/hooks.php

apps/files_encryption/tests/share.php

apps/files_external/lib/api.php

apps/files_sharing/ajax/list.php

apps/files_sharing/ajax/shareinfo.php

apps/files_sharing/lib/controllers/sharecontroller.php

apps/files_sharing/lib/readonlycache.php

apps/files_sharing/lib/readonlywrapper.php

apps/files_sharing/lib/sharedstorage.php

apps/files_sharing/publicwebdav.php

apps/files_sharing/tests/api.php

apps/files_sharing/tests/cache.php

apps/files_sharing/tests/share.php

apps/files_trashbin/lib/helper.php

apps/files_versions/tests/versions.php

lib/private/contacts/localaddressbook.php

lib/private/contactsmanager.php

lib/private/files/fileinfo.php

lib/private/files/node/file.php