/usr/include/evolution-3.10/calendar/gui/dialogs/ is in evolution-dev 3.10.4-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/evolution-3.10/calendar/gui/dialogs/alarm-dialog.h
/usr/include/evolution-3.10/calendar/gui/dialogs/alarm-list-dialog.h
/usr/include/evolution-3.10/calendar/gui/dialogs/cancel-comp.h
/usr/include/evolution-3.10/calendar/gui/dialogs/changed-comp.h
/usr/include/evolution-3.10/calendar/gui/dialogs/comp-editor-page.h
/usr/include/evolution-3.10/calendar/gui/dialogs/comp-editor-util.h
/usr/include/evolution-3.10/calendar/gui/dialogs/comp-editor.h
/usr/include/evolution-3.10/calendar/gui/dialogs/copy-source-dialog.h
/usr/include/evolution-3.10/calendar/gui/dialogs/delete-comp.h
/usr/include/evolution-3.10/calendar/gui/dialogs/delete-error.h
/usr/include/evolution-3.10/calendar/gui/dialogs/e-delegate-dialog.h
/usr/include/evolution-3.10/calendar/gui/dialogs/e-send-options-utils.h
/usr/include/evolution-3.10/calendar/gui/dialogs/event-editor.h
/usr/include/evolution-3.10/calendar/gui/dialogs/event-page.h
/usr/include/evolution-3.10/calendar/gui/dialogs/goto-dialog.h
/usr/include/evolution-3.10/calendar/gui/dialogs/memo-editor.h
/usr/include/evolution-3.10/calendar/gui/dialogs/memo-page.h
/usr/include/evolution-3.10/calendar/gui/dialogs/recur-comp.h
/usr/include/evolution-3.10/calendar/gui/dialogs/recurrence-page.h
/usr/include/evolution-3.10/calendar/gui/dialogs/save-comp.h
/usr/include/evolution-3.10/calendar/gui/dialogs/schedule-page.h
/usr/include/evolution-3.10/calendar/gui/dialogs/select-source-dialog.h
/usr/include/evolution-3.10/calendar/gui/dialogs/send-comp.h
/usr/include/evolution-3.10/calendar/gui/dialogs/task-editor.h
/usr/include/evolution-3.10/calendar/gui/dialogs/task-page.h