tree 9834bf6068796939b5b94bcecae4163afd83d3c6
parent fedb2709083a02674d45e2c20bb2bf4767dcce64
author Yifan Hong <elsk@google.com> 1586983654 -0700
committer Yifan Hong <elsk@google.com> 1587067961 -0700

libsnapshot: Add GetSnapshotMergeStatsInstance

This is preferred over SnapshotMergeStats::GetInstance because
the latter needs a concrete SnapshotManager, not the ISnapshotManager
interface.

SnapshotManagerStub::GetSnapshotMergeStatsInstance returns
a SnapshotMergeStatsStub instance.

Test: vts_libsnapshot_test
Bug: 148956645
Change-Id: Ife0ad6d3ce85333cbf395d07f74dedc9ca3fe675