bdc4e842cf
WM delays to destroy window surface if the window is running an exit animation, and clean it up after the animation finishes. In case the clean up process was not triggered, we do it before starting an app transition. Note that this is a safe guard for potential bugs. The surface shall be destroyed as soon as an animation finishes, so the clean up should have been done before an app transition starts. Bug: 205335975 Test: atest AppTransitionControllerTest Change-Id: I9c37ab9ebc57ef48827df25ecc52bf09101ad419