[gtk/matthiasc/for-master] Simplify gdk_surface_queue_render

[Matthias Clasen <matthiasc src gnome org>]

commit 2120e9df880cabfe21d5a4e8c2d0e6804a4e09d8
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Nov 3 14:37:27 2020 -0500

    Simplify gdk_surface_queue_render
    
    We can just call gdk_surface_invalidate_rect here
    like we do elsewhere in gdk, and I'm a bit uncertain
    about the current code that adds an empty update
    region.

 gdk/gdksurface.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)
---
diff --git a/gdk/gdksurface.c b/gdk/gdksurface.c
index 43d3371609..f28c6ac4d1 100644
--- a/gdk/gdksurface.c
+++ b/gdk/gdksurface.c
@@ -1408,13 +1408,9 @@ impl_surface_add_update_area (GdkSurface     *impl_surface,
 void
 gdk_surface_queue_render (GdkSurface *surface)
 {
-  cairo_region_t *region;
-
   g_return_if_fail (GDK_IS_SURFACE (surface));
 
-  region = cairo_region_create ();
-  impl_surface_add_update_area (surface, region);
-  cairo_region_destroy (region);
+  gdk_surface_invalidate_rect (surface, NULL);
 }
 
 /*
@@ -1495,7 +1491,9 @@ gdk_surface_freeze_updates (GdkSurface *surface)
 
   surface->update_freeze_count++;
   if (surface->update_freeze_count == 1)
+    {
     _gdk_frame_clock_uninhibit_freeze (surface->frame_clock);
+    }
 }
 
 /*