/usr/lib/x86_64-linux-gnu/ is in ubuntu-system-settings-online-accounts 0.7+16.04.20160322-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/libonline-accounts-plugin.so.1.0.0
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/libonline-accounts.so
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/libOnlineAccountsPlugin.so
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/Options.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/ServiceSwitches.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/StandardAnimation.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/ServiceItem.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/RemovalConfirmation.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/KeyboardRectangle.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/OAuth.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/ServiceItemBase.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/OAuthMain.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/WebView.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/ErrorItem.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/DuplicateAccount.qml
/usr/lib/x86_64-linux-gnu/ubuntu-system-settings/private/Ubuntu/OnlineAccounts/Plugin/qmldir
/usr/lib/x86_64-linux-gnu/libonline-accounts-plugin.so.1.0
/usr/lib/x86_64-linux-gnu/libonline-accounts-plugin.so.1