commit f5c5d934a418a6c28313f284eec4f98a6fbbdc5c
author Ta-wei Yen <twyen@google.com> Wed Jun 01 19:40:24 2016 -0700
committer Ta-wei Yen <twyen@google.com> Wed Jun 01 19:40:24 2016 -0700
tree 98391a46d41bde0faf0291da804c640845d45197
parent 0786462237e5a29e4491d43a78c07e365731dc7b

Centralize VVM error Processing

To prepare for vendor specific error codes every error that is written to
the voicemail status table is centralized to the VoicemailProtocol,
which determines what error code will be actually written.

+ Use PhoneAccountHandleConverter to convert subId instead of PhoneUtils.
  PhoneAccountHandleConverter still uses PhoneUtils under the hood but
  it will be changed to using public API in the future.

Bug:28968317
Bug:28977379
Change-Id: I69232b276ec0d456fb9ca1fb08f25b2d51d89462