d9ea032b73
Previously WindowContext is removed if the associated WindowContainer is removed. However, it causes an issue that WindowContext is removed unexpectedly after the last window is removed by WM#removeView(). When the last view is removed, WMS will remove the WindowToken in postWindowRemoveCleanupLocked(), and if the WindowToken is created by WindowContext, the associated WindowContext is also removed unexpectedly. This CL makes WindowContext switch back to listen to the previous DisplayArea if the last window is removed. Test: atest WindowContextListenerControllerTests Bug: 185460076 Change-Id: I9c1d0c15c77bbfb3662355f8c72f0d8c70ed6748