tree be49d1380bf9835e85c6d1bd88714433ee9d1069
parent e42973080953a9261a5a2b4a6e6542ba3a4c42c6
author Chilun <chilunhuang@google.com> 1642591114 +0800
committer Chilun <chilunhuang@google.com> 1644318637 +0800

Attach the nav bar for stage split

Update the code to support attaching the nav bar for stage split.
Also clean up the legacy split screen related code.

Bug: 178449492
Bug: 199236198
Test: atest RecentsAnimationControllerTest
Change-Id: I5ed1bd1f066430760e74e6e89ec8ca185990362a