5e48aeeadd
Before this change, we controlled wallpaper visibility on the Lockscreen by combination of visibility of NotificationShade window and setting/resetting FLAG_SHOW_WALLPAPER flag on its window. When the flag was removed while NotificationShade was still visible (e.g. OCCLUDE transition starts on the Lockscreen), the wallpaper became immediately invisible and caused a flicker. With this change, we keep the FLAG_SHOW_WALLPAPER on NotificationShade, and only rely on its visibility weather the wallpaper should be visible or not on the Lockscreen. Bug: 191438572 Test: existing tests + manual (open GPay app from the lockscreen) Change-Id: Id13ffbbd2c965e0dcc97effd3faf46fd7a8bb1a5