xserver: don't activate window always when mapping
xserver: don't activate window always when mapping

set_window_id is the one responsible for mapping the window and the shell will
decide whether a surface needs to be activated or not. But not always at
MapNotify. That was causing ugly behavior on non-toplevel windows.

Signed-off-by: Tiago Vignatti <f080760b2054d506aacc8dee97f8804c19fbc3aa@intel.com>

Fantu/compositor-spice,mchalupa/weston,eyolfson/weston,giucam/weston,Tarnyko/weston-xdg_surface_present,Fantu/compositor-spice,Tarnyko/weston-xdg_surface_present,mchalupa/weston,udoprog/weston,krezovic/weston,Gnurou/weston,udoprog/weston,xorgy/weston,Gnurou/weston,giucam/weston,kwm81/weston,kwm81/weston,eyolfson/weston,Fantu/compositor-spice,jonnylamb/weston,sir-murray/weston,xorgy/weston,sir-murray/weston,krezovic/weston,jonnylamb/weston