a28e0f474a
There is a race condition where Folder is closing, it unbinds, and then another call to AbstractFloatingView.closeAllOpenViews tries to close the Folder again. But since the contents are unbound and removed from the folder, it produces a NPE. Bug: 153625271 Change-Id: Ia6c55f15cf7517e26af8f499bc0c1a4828737480