x11: Move function call

The GLX visual selection is GLX specific, so it can be handled by the GLX
code.

There should be no reordering here, the call was just moved.

gdk/x11/gdkdisplay-x11.c

@@ -1426,7 +1426,6 @@ gdk_x11_display_open (const char *display_name)
    * stereo and double buffering
    */
   gdk_x11_display_init_gl (display_x11);
-  gdk_x11_screen_update_visuals_for_glx (display_x11->screen);
 
   if (display_x11->screen->rgba_visual)
     {

gdk/x11/gdkglcontext-glx.c

@@ -1005,7 +1005,7 @@ save_cached_gl_visual (GdkDisplay *display, VisualID visual)
   gdk_x11_display_error_trap_pop_ignored (display);
 }
 
-void
+static void
 gdk_x11_screen_update_visuals_for_glx (GdkX11Screen *x11_screen)
 {
   GdkDisplay *display;
@@ -1019,9 +1019,6 @@ gdk_x11_screen_update_visuals_for_glx (GdkX11Screen *x11_screen)
   display_x11 = GDK_X11_DISPLAY (display);
   dpy = gdk_x11_display_get_xdisplay (display);
 
-  if (!display_x11->have_glx)
-    return;
-
   /* We save the default visuals as a property on the root window to avoid
      having to initialize GL each time, as it may not be used later. */
   rgba_visual_id = get_cached_gl_visual (display);
@@ -1322,5 +1319,7 @@ gdk_x11_screen_init_glx (GdkX11Screen *screen)
                      display_x11->has_glx_multisample ? "yes" : "no",
                      display_x11->has_glx_visual_rating ? "yes" : "no"));
 
+  gdk_x11_screen_update_visuals_for_glx (display_x11->screen);
+
   return TRUE;
 }

gdk/x11/gdkglcontext-x11.h

@@ -75,7 +75,6 @@ gboolean        gdk_x11_display_make_gl_context_current (GdkDisplay    *display,
 typedef struct _GdkX11GLContextGLX      GdkX11GLContextGLX;
 
 gboolean                gdk_x11_screen_init_glx                 (GdkX11Screen  *screen);
-void                    gdk_x11_screen_update_visuals_for_glx   (GdkX11Screen  *screen);
 
 GType                   gdk_x11_gl_context_glx_get_type         (void) G_GNUC_CONST;
 GdkX11GLContext *       gdk_x11_gl_context_glx_new              (GdkSurface    *surface,