tree b07286f369fc72eb4ab544ed5d87b6fd58790dc2
parent df1552202170dd4d336c649d6852c041937ff003
author Hyangseok Chae <neo.chae@lge.com> 1573089346 +0900
committer chaviw <chaviw@google.com> 1576717513 -0800

Ignore PIP mode request for destroyed activity

PIP request can be postponed if keyguard is on.
If the activity is destroyed before keyguard is dismissed,
Then PIP operation causes NullPointerException.

In such case we should ignore PIP mode request.

Test:
Manual test -
 1.Configure Keyguard (Pattern, Password) for secure lock
 2.Receive a WhatsApp video call
 3.Press Back Key (WhatsApp enters into PIP mode)
 4.Caller ends a video call
 5.When user (receiver) unlocks the screen, system reboots
Test: atest WmTests:ActivityTaskManagerServiceTests#testEnterPipModeWhenRecordParentChangesToNull

Bug: 144045134

Change-Id: I8f67e57b2bfaa187829622b050c6ce387d749e8d
(cherry-picked from ae2c5e52efbd59b6bccd5b677b4047a292fe86fc)