/usr/share/gtk-doc/html/gnome-bluetooth/ is in libgnome-bluetooth-dev 3.8.2.1-0ubuntu4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gtk-doc/html/gnome-bluetooth/BluetoothChooser.html
/usr/share/gtk-doc/html/gnome-bluetooth/BluetoothChooserButton.html
/usr/share/gtk-doc/html/gnome-bluetooth/BluetoothChooserCombo.html
/usr/share/gtk-doc/html/gnome-bluetooth/BluetoothClient.html
/usr/share/gtk-doc/html/gnome-bluetooth/annotation-glossary.html
/usr/share/gtk-doc/html/gnome-bluetooth/api-index-full.html
/usr/share/gtk-doc/html/gnome-bluetooth/ch01.html
/usr/share/gtk-doc/html/gnome-bluetooth/gnome-bluetooth-bluetooth-enums.html
/usr/share/gtk-doc/html/gnome-bluetooth/gnome-bluetooth-bluetooth-plugin.html
/usr/share/gtk-doc/html/gnome-bluetooth/gnome-bluetooth-bluetooth-utils.html
/usr/share/gtk-doc/html/gnome-bluetooth/gnome-bluetooth.devhelp2
/usr/share/gtk-doc/html/gnome-bluetooth/home.png
/usr/share/gtk-doc/html/gnome-bluetooth/index.html
/usr/share/gtk-doc/html/gnome-bluetooth/index.sgml
/usr/share/gtk-doc/html/gnome-bluetooth/left.png
/usr/share/gtk-doc/html/gnome-bluetooth/object-tree.html
/usr/share/gtk-doc/html/gnome-bluetooth/right.png
/usr/share/gtk-doc/html/gnome-bluetooth/style.css
/usr/share/gtk-doc/html/gnome-bluetooth/up.png