Unsubscribe listeners when stopping UserBackupManagerService and remove unused code
Unsubscribe listeners as otherwise they schedule work on a stopped handler thread
after the user backup manager service is stopped
Also cleanup by removing unused code:
a) mBackupThread from BackupManagerService
b) TAG from BackupAgentTimeoutParameters
c) getRunningFullBackupTask from UserBackupManagerService
Bug: 135261178
Bug: 135180752
Test: 1. atest -v RunBackupFrameworksServicesRoboTests
2. atest -v $(find frameworks/base/services/tests/servicestests/src/com/android/server/backup -name '\''*Test.java'\'')
3. atest -v CtsBackupTestCases
4. atest -v CtsBackupHostTestCases
Change-Id: Ie199dd49c336a2519c0f8e6c8dda12d8cba8350a
5 files changed