AOSP/Email - bug fix: do not allow composing message with hidden private data attachments - Switch intent filtering to be blacklist based rather than whitelist based. am: a7637e9ad2 am: 44fc5abed4 am: 6f1a746491 am: b7b7462fe4
am: b265f5aa0f

Change-Id: Ide9617b62f8dd2fd5b777e5b34687ad1b8afb22c