tree d634f3be2239d07f9f4a5eda8abdf9a4eafb117d
parent df192a47fc9d415f9c7b0c786d05c25f34e725f6
author Christopher Tate <ctate@google.com> 1406677989 -0700
committer Christopher Tate <ctate@android.com> 1407440602 +0000

Reify the transport lookup/selection API

Introduce a stable BackupTransport interface class for transport
implementations to derive from.

Make the interface for viewing/selecting the active backup transport
part of the stable API.

Make restore-related classes (RestoreSession, RestoreSet) stable API.

Express backup manager APIs needed for transport operation as
@SystemApi methods in BackupManager.

Bug 16661321

Change-Id: I423b87ae8f45c1b77831d4f8ffd97715484c2d2b