tree 00b45c9e47676d83889e2e9be8b91676261193f3
parent 0acee601f8cc17ee7790d79e0ebe06a165d3dc0b
author Riddle Hsu <riddlehsu@google.com> 1577177469 +0800
committer Riddle Hsu <riddlehsu@google.com> 1579935672 +0800

Remove invisible replaced recent task when going to home

There may be multiple tasks with the same base intent by
launching activity with intent flags (FLAG_ACTIVITY_NEW_TASK
| FLAG_ACTIVITY_MULTIPLE_TASK). Since the recents list only
stores the last task for the same task affinity or non-document
identical intent, if the previous task still contains activities,
it may be a leakage.

Bug: 142986867
Test: atest RecentTasksTest# \
      testAddTasksHomeClearUntrackedTasks_expectFinish

Change-Id: Ic6b42f53af31cc574994f1eca4977559cb2db072