/usr/lib/ is in unity-webapps-qml 0.1+16.04.20160114-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/qml/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/UnityWebApps.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/online-accounts/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/online-accounts/backend/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/online-accounts/backend/online-accounts-client.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/online-accounts/backend/online-accounts.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/content-hub/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/content-hub/backend/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/content-hub/backend/content-hub.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/download-manager/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/download-manager/backend/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/download-manager/backend/download-api.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/tools/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/tools/backend/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/tools/backend/tools.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/alarm-api/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/alarm-api/backend/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/alarm-api/backend/alarm-api.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/runtime-api/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/runtime-api/backend/
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/bindings/runtime-api/backend/runtime-api.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/unity-webapps-api.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/UnityWebAppsUtils.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/libUnityWebApps.so
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/Settings.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/UnityWebAppsBackendComponents.js
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/UnityWebApps.qml
/usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/UnityWebApps/qmldir