/usr/include/ is in libunity-core-6.0-dev 7.4.0+16.04.20160415-0ubuntu1.
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..
/usr/include/Unity-6.0/
/usr/include/Unity-6.0/UnityCore/
/usr/include/Unity-6.0/UnityCore/Tracks.h
/usr/include/Unity-6.0/UnityCore/Scopes.h
/usr/include/Unity-6.0/UnityCore/GLibSource.h
/usr/include/Unity-6.0/UnityCore/RadioOptionFilter.h
/usr/include/Unity-6.0/UnityCore/Scope.h
/usr/include/Unity-6.0/UnityCore/ScopeData.h
/usr/include/Unity-6.0/UnityCore/ModelRowAdaptor.h
/usr/include/Unity-6.0/UnityCore/UWeakPtr.h
/usr/include/Unity-6.0/UnityCore/IndicatorEntry.h
/usr/include/Unity-6.0/UnityCore/GLibSignal.h
/usr/include/Unity-6.0/UnityCore/MoviePreview.h
/usr/include/Unity-6.0/UnityCore/RatingsFilter.h
/usr/include/Unity-6.0/UnityCore/GLibDBusProxy.h
/usr/include/Unity-6.0/UnityCore/GLibDBusNameWatcher.h
/usr/include/Unity-6.0/UnityCore/ModelIterator-inl.h
/usr/include/Unity-6.0/UnityCore/ConnectionManager.h
/usr/include/Unity-6.0/UnityCore/Model-inl.h
/usr/include/Unity-6.0/UnityCore/Result.h
/usr/include/Unity-6.0/UnityCore/Model.h
/usr/include/Unity-6.0/UnityCore/PreviewPlayer.h
/usr/include/Unity-6.0/UnityCore/GLibSignal-inl.h
/usr/include/Unity-6.0/UnityCore/Track.h
/usr/include/Unity-6.0/UnityCore/MusicPreview.h
/usr/include/Unity-6.0/UnityCore/AppmenuIndicator.h
/usr/include/Unity-6.0/UnityCore/GenericPreview.h
/usr/include/Unity-6.0/UnityCore/ScopeProxy.h
/usr/include/Unity-6.0/UnityCore/MiscUtils.h
/usr/include/Unity-6.0/UnityCore/ActionHandle.h
/usr/include/Unity-6.0/UnityCore/Filter.h
/usr/include/Unity-6.0/UnityCore/GLibWrapper.h
/usr/include/Unity-6.0/UnityCore/GLibDBusServer.h
/usr/include/Unity-6.0/UnityCore/Hud.h
/usr/include/Unity-6.0/UnityCore/CheckOptionFilter.h
/usr/include/Unity-6.0/UnityCore/SocialPreview.h
/usr/include/Unity-6.0/UnityCore/ScopeProxyInterface.h
/usr/include/Unity-6.0/UnityCore/ApplicationPreview.h
/usr/include/Unity-6.0/UnityCore/Preview.h
/usr/include/Unity-6.0/UnityCore/GLibWrapper-inl.h
/usr/include/Unity-6.0/UnityCore/Category.h
/usr/include/Unity-6.0/UnityCore/Results.h
/usr/include/Unity-6.0/UnityCore/Filters.h
/usr/include/Unity-6.0/UnityCore/MultiRangeFilter.h
/usr/include/Unity-6.0/UnityCore/GnomeSessionManager.h
/usr/include/Unity-6.0/UnityCore/GSettingsScopes.h
/usr/include/Unity-6.0/UnityCore/DesktopUtilities.h
/usr/include/Unity-6.0/UnityCore/DBusIndicators.h
/usr/include/Unity-6.0/UnityCore/Indicator.h
/usr/include/Unity-6.0/UnityCore/SessionManager.h
/usr/include/Unity-6.0/UnityCore/ModelRowAdaptor-inl.h
/usr/include/Unity-6.0/UnityCore/PaymentPreview.h
/usr/include/Unity-6.0/UnityCore/Categories.h
/usr/include/Unity-6.0/UnityCore/Variant.h
/usr/include/Unity-6.0/UnityCore/ModelIterator.h
/usr/include/Unity-6.0/UnityCore/Indicators.h