30481342: Security Vulnerability - TOCTOU in MmsProvider allows access to files as phone (radio) uid - DO NOT MERGE am: 8ce0cad150  -s ours am: c4cded1767 am: ba689bea2f am: e3615f85c6  -s ours
am: e7918d5944

Change-Id: Ic3ae9382444f77e87b074f202d2dbdf16255b588