tree 808b6a2559235a6867478b8757ba111d59435484
parent 7ea9639aa2afc8a72f22f6b710b2cc6d9fb85288
author Ta-wei Yen <twyen@google.com> 1453776287 -0800
committer Ta-wei Yen <twyen@google.com> 1453776287 -0800

Visual voicemail prefetching

The prefetch happens at: boot, reconnecting to phone service
(SIM insert or cell signal restored), received SMS for new incoming
voicemail, and the manual sync intent.

The prefetch runs asynchronously for each message, retrying up to 3 time.
This should be batched in the future to avoid opening new connections.

Bug:23945351
Change-Id: I7c11bac8eb27829fcb71ee445bd2bd448429a018