/usr/include/libtomahawk/utils/ is in libtomahawk-dev 0.8.4+dfsg1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/libtomahawk/utils/AnimatedSpinner.h
/usr/include/libtomahawk/utils/BinaryExtractWorker.h
/usr/include/libtomahawk/utils/BinaryInstallerHelper.h
/usr/include/libtomahawk/utils/Closure.h
/usr/include/libtomahawk/utils/Cloudstream.h
/usr/include/libtomahawk/utils/DpiScaler.h
/usr/include/libtomahawk/utils/DropJobNotifier.h
/usr/include/libtomahawk/utils/GroovesharkParser.h
/usr/include/libtomahawk/utils/GuiHelpers.h
/usr/include/libtomahawk/utils/ImageRegistry.h
/usr/include/libtomahawk/utils/ItunesLoader.h
/usr/include/libtomahawk/utils/ItunesParser.h
/usr/include/libtomahawk/utils/Json.h
/usr/include/libtomahawk/utils/JspfLoader.h
/usr/include/libtomahawk/utils/Logger.h
/usr/include/libtomahawk/utils/M3uLoader.h
/usr/include/libtomahawk/utils/NetworkAccessManager.h
/usr/include/libtomahawk/utils/NetworkProxyFactory.h
/usr/include/libtomahawk/utils/NetworkReply.h
/usr/include/libtomahawk/utils/PixmapDelegateFader.h
/usr/include/libtomahawk/utils/PluginLoader.h
/usr/include/libtomahawk/utils/PluginLoader_p.h
/usr/include/libtomahawk/utils/ProxyStyle.h
/usr/include/libtomahawk/utils/Qnr_IoDeviceStream.h
/usr/include/libtomahawk/utils/ResultUrlChecker.h
/usr/include/libtomahawk/utils/SharedTimeLine.h
/usr/include/libtomahawk/utils/ShortLinkHelper.h
/usr/include/libtomahawk/utils/ShortLinkHelper_p.h
/usr/include/libtomahawk/utils/ShortenedLinkParser.h
/usr/include/libtomahawk/utils/SmartPointerList.h
/usr/include/libtomahawk/utils/SpotifyParser.h
/usr/include/libtomahawk/utils/TomahawkCache.h
/usr/include/libtomahawk/utils/TomahawkStyle.h
/usr/include/libtomahawk/utils/TomahawkUtils.h
/usr/include/libtomahawk/utils/TomahawkUtilsGui.h
/usr/include/libtomahawk/utils/TomahawkUtils_Mac.h
/usr/include/libtomahawk/utils/WeakObjectHash.h
/usr/include/libtomahawk/utils/WeakObjectList.h
/usr/include/libtomahawk/utils/WidgetDragFilter.h
/usr/include/libtomahawk/utils/XspfGenerator.h
/usr/include/libtomahawk/utils/XspfLoader.h