tree 56124b106ee41fa6d993bf2a4400dbb24f4cf1a5
parent 4a314719d9bd48e8e905c6f5c78fd6420cb808cf
author Jeff Chang <chengjeff@google.com> 1600678515 +0800
committer Jeff Chang <chengjeff@google.com> 1600680663 +0800

[RESTRICT AUTOMERGE]Don't finish noHistory activity while it is on the topmost.

There was no top running activity in the target task result in the
NPE.

The CL makes sure the top running noHistory activity is not finished
when launched again and have protection for getTopNonFinishingActivity.

Bug: 159507052
Test: atest testNoHistoryActivityNotFinished
Change-Id: Id582f28d79bec052115e07d98c097c7d50c11609