[PATCH] winex11.drv: Map the window in UpdateLayeredWindow.

[Gabriel Ivăncescu]

Hi, is there anything wrong with the patch? To explain it briefly in 
case it's not clear why it's needed:

1) UpdateLayeredWindow sets data->layered to TRUE.

2) Before the commit that regressed, set_window_pos was called after the 
driver's UpdateLayeredWindow.

3) So when set_window_pos called the driver's WindowPosChanged, it saw 
data->layered == TRUE and mapped the window.

Now, since the regression commit, set_window_pos is called *before* the 
driver's UpdateLayeredWindow. This causes WindowPosChanged to be 
*possibly* called when data->layered == FALSE, even though it will be 
set to TRUE in UpdateLayeredWindow.

So we have to map it in UpdateLayeredWindow now, if it's still not 
mapped yet and the other conditions hold.