30481342: Security Vulnerability - TOCTOU in MmsProvider allows access to files as phone (radio) uid - DO NOT MERGE am: 53ff7691e0 am: 20903846d5 am: 37e2a4dca9  -s ours am: 8c659fb296 am: 916c01a5f9
am: d379a7958f

Change-Id: I03febbce5b332d6d24fdabb95b9b4aa404cb235a