/usr/include/google/protobuf/stubs/ is in libprotobuf-dev 3.0.0-9.
This file is owned by root:root, with mode 0o755.
..
/usr/include/google/protobuf/stubs/atomic_sequence_num.h
/usr/include/google/protobuf/stubs/atomicops.h
/usr/include/google/protobuf/stubs/atomicops_internals_arm64_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_arm_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_arm_qnx.h
/usr/include/google/protobuf/stubs/atomicops_internals_atomicword_compat.h
/usr/include/google/protobuf/stubs/atomicops_internals_generic_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_macosx.h
/usr/include/google/protobuf/stubs/atomicops_internals_mips_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_pnacl.h
/usr/include/google/protobuf/stubs/atomicops_internals_power.h
/usr/include/google/protobuf/stubs/atomicops_internals_ppc_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_s390_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_solaris.h
/usr/include/google/protobuf/stubs/atomicops_internals_tsan.h
/usr/include/google/protobuf/stubs/atomicops_internals_x86_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_x86_msvc.h
/usr/include/google/protobuf/stubs/bytestream.h
/usr/include/google/protobuf/stubs/callback.h
/usr/include/google/protobuf/stubs/casts.h
/usr/include/google/protobuf/stubs/common.h
/usr/include/google/protobuf/stubs/fastmem.h
/usr/include/google/protobuf/stubs/hash.h
/usr/include/google/protobuf/stubs/logging.h
/usr/include/google/protobuf/stubs/macros.h
/usr/include/google/protobuf/stubs/mutex.h
/usr/include/google/protobuf/stubs/once.h
/usr/include/google/protobuf/stubs/platform_macros.h
/usr/include/google/protobuf/stubs/port.h
/usr/include/google/protobuf/stubs/scoped_ptr.h
/usr/include/google/protobuf/stubs/shared_ptr.h
/usr/include/google/protobuf/stubs/singleton.h
/usr/include/google/protobuf/stubs/status.h
/usr/include/google/protobuf/stubs/stl_util.h
/usr/include/google/protobuf/stubs/stringpiece.h
/usr/include/google/protobuf/stubs/template_util.h
/usr/include/google/protobuf/stubs/type_traits.h