30481342: Security Vulnerability - TOCTOU in MmsProvider allows access to files as phone (radio) uid - DO NOT MERGE am: fd9be3377f am: a8ae137579 am: b028c61f44  -s ours am: 7153a8830c  -s ours am: 6af147887d am: 2fe0b17cb1
am: fae6fcbf0f  -s ours

Change-Id: I286d44e323d782c6b709cca97abe260c91de93b3