32807795  Security Vulnerability - AOSP Messaging App: thirdparty can attach private files from "/data/data/com.android.messaging/" directory to the messaging app. am: a2aa53f83a am: 90bf70396d am: 305a004e19 am: 2397f2fbef
am: 313284eee7

Change-Id: Iaa18124b7f9090efe55a0a46a1851ff5c0b6fe28