Video Player: always set FLAG_LOW_PROFILE on hide

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
Video Player: fix Nav Bar not hidden sometimes

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
res: rename action_bar_layout (cosmetic)

It's only used for Player hence the new name.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>