Don't allow file attachment from /data through GET_CONTENT. am: eace8b43e8 am: d21eae6d32 am: ef87f57acc am: 09e62336e5 am: 15c7da491d
am: 7e2e3d56c2

Change-Id: I44971e89b7fa39ad5216a7d2c897723a5edf7984