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 am: f0694fe108 am: 02506d63a6 am: 138308b649 am: dd8ccb5662  -s ours am: 6e30cd12b3 am: 899c10a5a6 am: 857e70ca0c am: 72adcbe411
am: 6b2214024e  -s ours

Change-Id: Id6acc89f60a37070f72f3292cb8da858581aff9d