tree f158e1cd1e27cd14347c76b36d0183b901498e46
parent 2cea7249a95cd02e27252e6938a249b59e93fe2f
author Yifan Hong <elsk@google.com> 1582670858 -0800
committer Yifan Hong <elsk@google.com> 1583426506 -0800

libsnapshot: SnapshotMergeStats::Start/Finish

Change API for SnapshotMergeStats so that it is easier
for update_engine to use.

Test: apply OTA and look at stats
Bug: 147696014
Bug: 138817833
Change-Id: Ie4036ac7382102c00f0761f443d78e00b9e585d5
Merged-In: Ie4036ac7382102c00f0761f443d78e00b9e585d5