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

Change-Id: I0d8d7cf58297e49273dc05cd2fde9bd45547deb2