Relayout window when rotated landscape <-> seascape

When 180 degree rotation happens there is no real configuration
change, so an application window could miss an update, which
caused visual artifacts.
In this CL layout is forced when rotation changes.

Test: Unit tests in ag/1778638.
Bug: 33607506
Change-Id: Ia1e3375212bade9061d6e1d9679604e67c50da20