/usr/include/ is in libplatform-api-headers 0.20+14.04.20140411-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/ubuntu/
/usr/include/ubuntu/application/
/usr/include/ubuntu/application/location/
/usr/include/ubuntu/application/location/position_update.h
/usr/include/ubuntu/application/location/heading_update.h
/usr/include/ubuntu/application/location/controller.h
/usr/include/ubuntu/application/location/velocity_update.h
/usr/include/ubuntu/application/location/session.h
/usr/include/ubuntu/application/location/service.h
/usr/include/ubuntu/application/options.h
/usr/include/ubuntu/application/sensors/
/usr/include/ubuntu/application/sensors/light.h
/usr/include/ubuntu/application/sensors/ubuntu_application_sensors.h
/usr/include/ubuntu/application/sensors/event/
/usr/include/ubuntu/application/sensors/event/light.h
/usr/include/ubuntu/application/sensors/event/proximity.h
/usr/include/ubuntu/application/sensors/event/accelerometer.h
/usr/include/ubuntu/application/sensors/proximity.h
/usr/include/ubuntu/application/sensors/accelerometer.h
/usr/include/ubuntu/application/url_dispatcher/
/usr/include/ubuntu/application/url_dispatcher/session.h
/usr/include/ubuntu/application/url_dispatcher/service.h
/usr/include/ubuntu/application/ubuntu_application_api_mirserver_priv.h
/usr/include/ubuntu/application/archive.h
/usr/include/ubuntu/application/lifecycle_delegate.h
/usr/include/ubuntu/application/id.h
/usr/include/ubuntu/application/ui/
/usr/include/ubuntu/application/ui/stage.h
/usr/include/ubuntu/application/ui/clipboard.h
/usr/include/ubuntu/application/ui/options.h
/usr/include/ubuntu/application/ui/window.h
/usr/include/ubuntu/application/ui/display.h
/usr/include/ubuntu/application/ui/input/
/usr/include/ubuntu/application/ui/input/event.h
/usr/include/ubuntu/application/ui/session.h
/usr/include/ubuntu/application/ui/window_parent.h
/usr/include/ubuntu/application/ui/window_properties.h
/usr/include/ubuntu/application/ui/window_state.h
/usr/include/ubuntu/application/ui/form_factor.h
/usr/include/ubuntu/application/ui/window_type.h
/usr/include/ubuntu/application/ui/config.h
/usr/include/ubuntu/application/description.h
/usr/include/ubuntu/application/instance.h
/usr/include/ubuntu/application/operation_mode.h
/usr/include/ubuntu/ui/
/usr/include/ubuntu/ui/ubuntu_ui_session_service.h
/usr/include/ubuntu/unit.h
/usr/include/ubuntu/status.h
/usr/include/ubuntu/visibility.h