commit 5faa530d1f732db066aa1bb27943f7db3bb5e7ab
author Neil Fuller <nfuller@google.com> Thu Sep 14 09:39:07 2017 +0100
committer Neil Fuller <nfuller@google.com> Fri Sep 15 15:10:18 2017 +0100
tree 7917c5e7b8ce842ada36e5693868160e2e294e7a
parent 3830d70bd2373d21e5d7162a2e187d013f1cb090

Fix a no-op uninstall being treated as a failure

Treat a stageUninstall() doing nothing as a success, not a
failure. This prevents the system retrying the uninstall
later.

Modified several tests accordingly and added new
ones to catch similar cases.

Test: Manual testing, adb dumpsys timezone
Test: PTS: run pts -m PtsTimeZoneTestCases
Test: CTS: run cts -m CtsLibcoreTestCases -t com.android.timezone.distro.installer.TimeZoneDistroInstallerTest
Bug: 65657176
Merged-in: I00b0cae4e2473a2b55480f0274af493bbc4f3ca8
Change-Id: I00b0cae4e2473a2b55480f0274af493bbc4f3ca8
(cherry picked from commit 5a9e9b9ed812b1df5d109a9fa99de4f32f6ea50b)