/usr/lib/ is in webapp-container-autopilot 0.23+16.04.20160413-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/
/usr/lib/python3/dist-packages/
/usr/lib/python3/dist-packages/webapp_container/
/usr/lib/python3/dist-packages/webapp_container/__init__.py
/usr/lib/python3/dist-packages/webapp_container/tests/
/usr/lib/python3/dist-packages/webapp_container/tests/test_media_permission.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_app_launch.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_context_menu.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_user_agent.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_chrome.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_popup_webview_overlay.py
/usr/lib/python3/dist-packages/webapp_container/tests/__init__.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_url_patterns.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_sad_tab.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_overlay_recovery.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_webapp_name_precedence.py
/usr/lib/python3/dist-packages/webapp_container/tests/fake_servers.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_page_meta_collector.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_saml_url_patterns.py
/usr/lib/python3/dist-packages/webapp_container/tests/test_scheme_filter.py