/usr/include/android-23/cutils/ is in android-headers-23 23-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/android-23/cutils/android_reboot.h
/usr/include/android-23/cutils/aref.h
/usr/include/android-23/cutils/ashmem.h
/usr/include/android-23/cutils/atomic.h
/usr/include/android-23/cutils/bitops.h
/usr/include/android-23/cutils/compiler.h
/usr/include/android-23/cutils/config_utils.h
/usr/include/android-23/cutils/debugger.h
/usr/include/android-23/cutils/fs.h
/usr/include/android-23/cutils/hashmap.h
/usr/include/android-23/cutils/iosched_policy.h
/usr/include/android-23/cutils/jstring.h
/usr/include/android-23/cutils/klog.h
/usr/include/android-23/cutils/list.h
/usr/include/android-23/cutils/log.h
/usr/include/android-23/cutils/memory.h
/usr/include/android-23/cutils/misc.h
/usr/include/android-23/cutils/multiuser.h
/usr/include/android-23/cutils/native_handle.h
/usr/include/android-23/cutils/open_memstream.h
/usr/include/android-23/cutils/partition_utils.h
/usr/include/android-23/cutils/process_name.h
/usr/include/android-23/cutils/properties.h
/usr/include/android-23/cutils/qtaguid.h
/usr/include/android-23/cutils/record_stream.h
/usr/include/android-23/cutils/sched_policy.h
/usr/include/android-23/cutils/sockets.h
/usr/include/android-23/cutils/str_parms.h
/usr/include/android-23/cutils/threads.h
/usr/include/android-23/cutils/trace.h
/usr/include/android-23/cutils/uevent.h