tree 4490ca62ba4b783101a098519f22cb80cfcfa329
parent 51d1c6ec661550a6b7033aaf42c378f866cf9cc5
author Riddle Hsu <riddlehsu@google.com> 1654878153 +0800
committer Riddle Hsu <riddlehsu@google.com> 1654878153 +0800

Avoid potential NPE if the restore-below task is not collected

If there is an existing collecting transition, the restore-below
task may not be collected.

Also make sure continueWindowLayout() will be called in finally
block. Previously if handleStartResult() throws exception, the
surface layout will be broken that its defer count isn't paired.

Bug: 230582311
Test: adb shell setprop persist.wm.debug.shell_transit 1; reboot
      Launch/swipe app quickly many times.
Change-Id: I7ae962c5085630a5cf194625d2f8b3e8f30a45b2