/usr/include/ is in libgoogle-perftools-dev 2.5-2.2ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/google/
/usr/include/google/heap-checker.h
/usr/include/google/heap-profiler.h
/usr/include/google/malloc_extension.h
/usr/include/google/malloc_extension_c.h
/usr/include/google/malloc_hook.h
/usr/include/google/malloc_hook_c.h
/usr/include/google/profiler.h
/usr/include/google/stacktrace.h
/usr/include/google/tcmalloc.h
/usr/include/gperftools/
/usr/include/gperftools/heap-checker.h
/usr/include/gperftools/heap-profiler.h
/usr/include/gperftools/malloc_extension.h
/usr/include/gperftools/malloc_extension_c.h
/usr/include/gperftools/malloc_hook.h
/usr/include/gperftools/malloc_hook_c.h
/usr/include/gperftools/profiler.h
/usr/include/gperftools/stacktrace.h
/usr/include/gperftools/tcmalloc.h