/usr/ is in epiphany-browser-dev 3.4.0.1-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/epiphany/
/usr/include/epiphany/3.4/
/usr/include/epiphany/3.4/epiphany/
/usr/include/epiphany/3.4/epiphany/ephy-lib-type-builtins.h
/usr/include/epiphany/3.4/epiphany/ephy-dialog.h
/usr/include/epiphany/3.4/epiphany/ephy-loader.h
/usr/include/epiphany/3.4/epiphany/ephy-node.h
/usr/include/epiphany/3.4/epiphany/ephy-node-db.h
/usr/include/epiphany/3.4/epiphany/ephy-settings.h
/usr/include/epiphany/3.4/epiphany/ephy-state.h
/usr/include/epiphany/3.4/epiphany/ephy-embed-type-builtins.h
/usr/include/epiphany/3.4/epiphany/ephy-adblock.h
/usr/include/epiphany/3.4/epiphany/ephy-adblock-manager.h
/usr/include/epiphany/3.4/epiphany/ephy-download.h
/usr/include/epiphany/3.4/epiphany/ephy-embed.h
/usr/share/gtk-doc/html/epiphany/right.png
/usr/include/epiphany/3.4/epiphany/ephy-embed-container.h
/usr/include/epiphany/3.4/epiphany/ephy-embed-event.h
/usr/include/epiphany/3.4/epiphany/ephy-embed-prefs.h
/usr/include/epiphany/3.4/epiphany/ephy-embed-single.h
/usr/include/epiphany/3.4/epiphany/ephy-embed-shell.h
/usr/include/epiphany/3.4/epiphany/ephy-embed-utils.h
/usr/include/epiphany/3.4/epiphany/ephy-permission-manager.h
/usr/include/epiphany/3.4/epiphany/ephy-web-view.h
/usr/include/epiphany/3.4/epiphany/ephy-bookmarks-type-builtins.h
/usr/include/epiphany/3.4/epiphany/ephy-bookmarks.h
/usr/include/epiphany/3.4/epiphany/ephy-type-builtins.h
/usr/include/epiphany/3.4/epiphany/ephy-extension.h
/usr/include/epiphany/3.4/epiphany/ephy-extensions-manager.h
/usr/include/epiphany/3.4/epiphany/ephy-link.h
/usr/include/epiphany/3.4/epiphany/ephy-notebook.h
/usr/include/epiphany/3.4/epiphany/ephy-session.h
/usr/include/epiphany/3.4/epiphany/ephy-shell.h
/usr/include/epiphany/3.4/epiphany/ephy-window.h
/usr/include/epiphany/3.4/epiphany/epiphany.h
/usr/lib/
/usr/lib/pkgconfig/
/usr/lib/pkgconfig/epiphany-3.4.pc
/usr/share/
/usr/share/aclocal/
/usr/share/aclocal/epiphany.m4
/usr/share/gir-1.0/
/usr/share/gir-1.0/Epiphany-3.4.gir
/usr/share/gtk-doc/
/usr/share/gtk-doc/html/
/usr/share/gtk-doc/html/epiphany/
/usr/share/gtk-doc/html/epiphany/EphyDialog.html
/usr/share/gtk-doc/html/epiphany/EphyLocationEntry.html
/usr/share/gtk-doc/html/epiphany/EphyNodeView.html
/usr/share/gtk-doc/html/epiphany/EphySearchEntry.html
/usr/share/gtk-doc/html/epiphany/EphyTreeModelNode.html
/usr/share/gtk-doc/html/epiphany/EphyTreeModelSort.html
/usr/share/gtk-doc/html/epiphany/EphyWebView.html
/usr/share/gtk-doc/html/epiphany/EphyWindow.html
/usr/share/gtk-doc/html/epiphany/EphyZoomAction.html
/usr/share/gtk-doc/html/epiphany/annotation-glossary.html
/usr/share/gtk-doc/html/epiphany/ch01.html
/usr/share/gtk-doc/html/epiphany/ch02.html
/usr/share/gtk-doc/html/epiphany/ch03.html
/usr/share/gtk-doc/html/epiphany/epiphany-EphyLocationAction.html
/usr/share/gtk-doc/html/epiphany/epiphany-EphyToolbar.html
/usr/share/gtk-doc/html/epiphany/epiphany-Epiphany-Debug-Helpers.html
/usr/share/gtk-doc/html/epiphany/epiphany-Epiphany-File-Helpers.html
/usr/share/gtk-doc/html/epiphany/epiphany.devhelp2
/usr/share/gtk-doc/html/epiphany/home.png
/usr/share/gtk-doc/html/epiphany/index.html
/usr/share/gtk-doc/html/epiphany/index.sgml
/usr/share/gtk-doc/html/epiphany/left.png
/usr/share/gtk-doc/html/epiphany/style.css
/usr/share/gtk-doc/html/epiphany/up.png
/usr/share/doc/
/usr/share/doc/epiphany-browser-dev/
/usr/share/doc/epiphany-browser-dev/copyright
/usr/share/doc/epiphany-browser-dev/changelog.gz
/usr/share/doc/epiphany-browser-dev/changelog.Debian.gz