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 am: 7f07953f8f
am: 0b4552fe46

Change-Id: Ib59984fc2beae21cc792680e6b5680b180839e5b