/usr/ is in libprotobuf-dev 2.6.1-1.
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/usr/include/
/usr/include/google/
/usr/include/google/protobuf/
/usr/include/google/protobuf/wire_format_lite_inl.h
/usr/include/google/protobuf/wire_format_lite.h
/usr/include/google/protobuf/wire_format.h
/usr/include/google/protobuf/unknown_field_set.h
/usr/include/google/protobuf/text_format.h
/usr/include/google/protobuf/service.h
/usr/include/google/protobuf/repeated_field.h
/usr/include/google/protobuf/reflection_ops.h
/usr/include/google/protobuf/message_lite.h
/usr/include/google/protobuf/message.h
/usr/include/google/protobuf/generated_message_reflection.h
/usr/include/google/protobuf/generated_message_util.h
/usr/include/google/protobuf/generated_enum_reflection.h
/usr/include/google/protobuf/extension_set.h
/usr/include/google/protobuf/dynamic_message.h
/usr/include/google/protobuf/descriptor_database.h
/usr/include/google/protobuf/descriptor.pb.h
/usr/include/google/protobuf/descriptor.h
/usr/include/google/protobuf/descriptor.proto
/usr/include/google/protobuf/stubs/
/usr/include/google/protobuf/stubs/type_traits.h
/usr/include/google/protobuf/stubs/template_util.h
/usr/include/google/protobuf/stubs/stl_util.h
/usr/include/google/protobuf/stubs/once.h
/usr/include/google/protobuf/stubs/platform_macros.h
/usr/include/google/protobuf/stubs/common.h
/usr/include/google/protobuf/stubs/atomicops_internals_x86_msvc.h
/usr/include/google/protobuf/stubs/atomicops_internals_x86_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_tsan.h
/usr/include/google/protobuf/stubs/atomicops_internals_solaris.h
/usr/include/google/protobuf/stubs/atomicops_internals_pnacl.h
/usr/include/google/protobuf/stubs/atomicops_internals_mips_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_macosx.h
/usr/include/google/protobuf/stubs/atomicops_internals_generic_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_atomicword_compat.h
/usr/include/google/protobuf/stubs/atomicops_internals_arm_qnx.h
/usr/include/google/protobuf/stubs/atomicops_internals_arm_gcc.h
/usr/include/google/protobuf/stubs/atomicops_internals_arm64_gcc.h
/usr/include/google/protobuf/stubs/atomicops.h
/usr/include/google/protobuf/io/
/usr/include/google/protobuf/io/zero_copy_stream_impl_lite.h
/usr/include/google/protobuf/io/zero_copy_stream_impl.h
/usr/include/google/protobuf/io/zero_copy_stream.h
/usr/include/google/protobuf/io/tokenizer.h
/usr/include/google/protobuf/io/strtod.h
/usr/include/google/protobuf/io/printer.h
/usr/include/google/protobuf/io/gzip_stream.h
/usr/include/google/protobuf/io/coded_stream.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libprotobuf.a
/usr/lib/x86_64-linux-gnu/libprotobuf-lite.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/protobuf.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/protobuf-lite.pc
/usr/share/
/usr/share/doc/
/usr/lib/x86_64-linux-gnu/libprotobuf-lite.so
/usr/lib/x86_64-linux-gnu/libprotobuf.so
/usr/share/doc/libprotobuf-dev