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

Change-Id: I67d025ef12eee66f23ed5137a5ef34d8e4875e46