VideoPlayer: Synchronize closing of top and bottom panels.
VideoPlayer: Synchronize closing of top and bottom panels.

This patch also prevents the user from closing the panels in portrait
mode where they are supposed to be always visible.

Signed-off-by: Peter Tworek <45f11722e542fe61db2d07ffa14ae9c3e4cb552a@gmail.com>

tworaz/sailfish-ytplayer,RobertMe/sailfish-ytplayer,tworaz/sailfish-ytplayer,RobertMe/sailfish-ytplayer,tworaz/sailfish-ytplayer,RobertMe/sailfish-ytplayer,RobertMe/sailfish-ytplayer,tworaz/sailfish-ytplayer,RobertMe/sailfish-ytplayer,tworaz/sailfish-ytplayer