/usr/include/pcl-1.7/pcl/octree/ is in libpcl-dev 1.7.2-14build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/pcl-1.7/pcl/octree/boost.h
/usr/include/pcl-1.7/pcl/octree/impl/
/usr/include/pcl-1.7/pcl/octree/impl/octree2buf_base.hpp
/usr/include/pcl-1.7/pcl/octree/impl/octree_base.hpp
/usr/include/pcl-1.7/pcl/octree/impl/octree_iterator.hpp
/usr/include/pcl-1.7/pcl/octree/impl/octree_pointcloud.hpp
/usr/include/pcl-1.7/pcl/octree/impl/octree_pointcloud_adjacency.hpp
/usr/include/pcl-1.7/pcl/octree/impl/octree_pointcloud_voxelcentroid.hpp
/usr/include/pcl-1.7/pcl/octree/impl/octree_search.hpp
/usr/include/pcl-1.7/pcl/octree/octree.h
/usr/include/pcl-1.7/pcl/octree/octree2buf_base.h
/usr/include/pcl-1.7/pcl/octree/octree_base.h
/usr/include/pcl-1.7/pcl/octree/octree_container.h
/usr/include/pcl-1.7/pcl/octree/octree_impl.h
/usr/include/pcl-1.7/pcl/octree/octree_iterator.h
/usr/include/pcl-1.7/pcl/octree/octree_key.h
/usr/include/pcl-1.7/pcl/octree/octree_nodes.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud_adjacency.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud_adjacency_container.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud_changedetector.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud_density.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud_occupancy.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud_pointvector.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud_singlepoint.h
/usr/include/pcl-1.7/pcl/octree/octree_pointcloud_voxelcentroid.h
/usr/include/pcl-1.7/pcl/octree/octree_search.h