[1/2] WineD3D: Mark GL Surface Clean after Fresh Surface Download

[Phil Costin]

Please don't apply these 2 patches yet, I've spotted tabs and I need to wait
for some of Stefan's patches (which are still in the queue) to be applied
first.

Thanks,
Phil

Phil Costin wrote:

> This patch resets the SFLAG_GLDIRTY flag for a surface once the GL surface
> data has been refreshed in surface_download_data().
> 
> Thanks to Stefan Dösinger for his advice in IRC during the implementation
> of these 2 patches.