progressbar not updated on pause

[Benjamin Kampmann]

Since a recent change on the player osd, the progressbar of the player osd it not synced when you pause the player.

Steps to reproduce:
 - Start the playback of the video
 - let the osd disappear and just let elisa play for some time without moving the mouse
 - press space or enter to stop the playback

Expected result:
The osd shows up and the progressbar and the position are synced with the current position in the stream

Current result:
The osd shows up but the progressbar and the position are wrong (they are from the last time, we saw the osd)

[Thomas Vander Stichele (thomasvs)]

Was about to file this but found it was already filed.