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

Change-Id: Iba03d4845e2596bbc2540397ddaa566eaca8b7c4