/usr/share/kde4/apps/plasma/packages/org.kde.active.contour-tablet-homescreen/contents/ui/ is in plasma-active-data 2.0+git2012021101-0ubuntu4~ppa3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/kde4/apps/plasma/packages/org.kde.active.contour-tablet-homescreen/contents/ui/ActivityPanel.qml
/usr/share/kde4/apps/plasma/packages/org.kde.active.contour-tablet-homescreen/contents/ui/HomeScreen.qml
/usr/share/kde4/apps/plasma/packages/org.kde.active.contour-tablet-homescreen/contents/ui/PlasmoidContainer.qml
/usr/share/kde4/apps/plasma/packages/org.kde.active.contour-tablet-homescreen/contents/ui/RecommendationsPanel.qml
/usr/share/kde4/apps/plasma/packages/org.kde.active.contour-tablet-homescreen/contents/ui/Shadow.qml
/usr/share/kde4/apps/plasma/packages/org.kde.active.contour-tablet-homescreen/contents/ui/SlidingDragButton.qml
/usr/share/kde4/apps/plasma/packages/org.kde.active.contour-tablet-homescreen/contents/ui/SystrayPanel.qml