/usr/share/ is in libgstreamer-plugins-base1.0-dev 1.8.0-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gir-1.0/
/usr/share/gir-1.0/GstVideo-1.0.gir
/usr/share/gir-1.0/GstSdp-1.0.gir
/usr/share/gir-1.0/GstRtsp-1.0.gir
/usr/share/gir-1.0/GstAllocators-1.0.gir
/usr/share/gir-1.0/GstFft-1.0.gir
/usr/share/gir-1.0/GstRtp-1.0.gir
/usr/share/gir-1.0/GstTag-1.0.gir
/usr/share/gir-1.0/GstApp-1.0.gir
/usr/share/gir-1.0/GstPbutils-1.0.gir
/usr/share/gir-1.0/GstAudio-1.0.gir
/usr/share/doc/
/usr/share/doc/libgstreamer-plugins-base1.0-dev/
/usr/share/doc/libgstreamer-plugins-base1.0-dev/copyright
/usr/share/doc/libgstreamer-plugins-base1.0-dev/NEWS.gz
/usr/share/doc/libgstreamer-plugins-base1.0-dev/AUTHORS
/usr/share/doc/libgstreamer-plugins-base1.0-dev/README.gz
/usr/share/doc/libgstreamer-plugins-base1.0-dev/changelog.Debian.gz
/usr/share/doc/libgstreamer-plugins-base1.0-dev/README.Debian