tree e8aab3b76a280bde5b93ac68f0aece375156e4b2
parent 48837535a0fc6ccd7c5e56f24de4cd477068727c
author Gaurav Bhola <gauravbhola@google.com> 1698967300 -0700
committer Gaurav Bhola <gauravbhola@google.com> 1700169609 +0000

Handle the case where root task could be null.

- If a root task is quickly destroyed, conerting its token to task
  object will return null.
- Handle that case as it happens in a few Activity related tests.

Bug: 297060765
Bug: 299972488
Test: atest AssistantStackTests
Test: atest StartActivityTests
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f384fa30fbf13ec5b1721bc0e52e1065be4cbed2)
Merged-In: I179055fd434656c8116661b9f39adfdcef249ce7
Change-Id: I179055fd434656c8116661b9f39adfdcef249ce7