Merge changes from topic "revert-16527342-revert-16511727-wm_DISPLAY_DECORATION-KXJKEKMWKV-VMUYJOIPFS"

* changes:
  Treat AID_GRAPHICS and AID_SYSTEM as having InternalSystemWindowAccess
  Reland "Allow changing composition from DISPLAY_DECORATION to DEVICE"
  Reland "Add eLayerIsDisplayDecoration flag"