tree a883b5a405522d86dde0340d7340933d4974cc31
parent 28a5d003ca2f7d3a6982529998fecd8ce211ab87
author Roman Sorokin <rsorokin@google.com> 1455717776 +0100
committer Roman Sorokin <rsorokin@google.com> 1458128171 +0100

Speed up of message backup/restore

 - Use BufferedWriter for backing up
 - Use bulkInsert into sms provider on restore
 - On restore the agent stores files onto disk and then launch deferred service to restore messages.
 - Cache threadId db request on backup and restore.
 - Made backups incremental

Also added unit test for hitting the quota on backup.

Bug: 27225193
Bug: 26870249

Change-Id: Ia8875fe692ba33039e58189dcdcca82f207768f1