Replace deprecated std::auto_ptr with std::unique_ptr
Exposed by change of compilation flags in the nightlies (cherry picked from commit 11ae64d2)
To be cherry-picked to stripping24r2-28r2-patches branch
Exposed by change of compilation flags in the nightlies (cherry picked from commit 11ae64d2)
To be cherry-picked to stripping24r2-28r2-patches branch