Track libcore change 9b7cfceb7b825835730f7977d4935dec3ff1a3be

Bug: 27762555
Change-Id: I03984f4319ba21976078b2b3dff1a857eb5ebd0a
(cherry picked from commit a7af7593fb41b7f67de8f3206233b576ebaaef48)
(cherry picked from commit c0f67813c31bd25ec40c98a4f1e77f98bdabbb48)
3 files changed