gtk: simplify resize

Simply ask for a small window size.  When the widgets don't fit in gtk
will automatically make the window large enougth to make things fit, no
need to try (and fail) duplicate that logic in qemu.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

ui/gtk.c

@@ -296,35 +296,23 @@ static void gd_update_caption(GtkDisplayState *s)
 static void gd_update_windowsize(VirtualConsole *vc)
 {
     GtkDisplayState *s = vc->s;
+    double sx, sy;
 
-    if (!s->full_screen) {
-        GtkRequisition req;
-        double sx, sy;
-
-        if (s->free_scale) {
-            sx = vc->gfx.scale_x;
-            sy = vc->gfx.scale_y;
-
-            vc->gfx.scale_y = 1.0;
-            vc->gfx.scale_x = 1.0;
-        } else {
-            sx = 1.0;
-            sy = 1.0;
-        }
-
-        gtk_widget_set_size_request
-            (vc->gfx.drawing_area,
-             surface_width(vc->gfx.ds) * vc->gfx.scale_x,
-             surface_height(vc->gfx.ds) * vc->gfx.scale_y);
-#if GTK_CHECK_VERSION(3, 0, 0)
-        gtk_widget_get_preferred_size(s->vbox, NULL, &req);
-#else
-        gtk_widget_size_request(s->vbox, &req);
-#endif
+    if (vc->type != GD_VC_GFX || s->full_screen) {
+        return;
+    }
 
-        gtk_window_resize(GTK_WINDOW(s->window),
-                          req.width * sx, req.height * sy);
+    if (s->free_scale) {
+        sx = 1.0;
+        sy = 1.0;
+    } else {
+        sx = vc->gfx.scale_x;
+        sy = vc->gfx.scale_y;
     }
+    gtk_widget_set_size_request(vc->gfx.drawing_area,
+                                surface_width(vc->gfx.ds) * sx,
+                                surface_height(vc->gfx.ds) * sy);
+    gtk_window_resize(GTK_WINDOW(s->window), 320, 240);
 }
 
 static void gd_update_full_redraw(VirtualConsole *vc)