[gtk+] gdkwindow: Remove extra arguments from process_updates_recurse_helper

[Jasper St. Pierre <jstpierre src gnome org>]

commit e67e8ebb301368449b417ec11a6a6323257e09cd
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Jun 23 16:15:48 2014 -0400

    gdkwindow: Remove extra arguments from process_updates_recurse_helper
    
    These can easily be calculated inside the function.

 gdk/gdkwindow.c |   12 +++++++-----
 1 files changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index db7b640..29019ad 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -3239,8 +3239,7 @@ gdk_window_add_damage (GdkWindow *toplevel,
 
 static void
 _gdk_window_process_updates_recurse_helper (GdkWindow *window,
-                                            cairo_region_t *expose_region,
-                                            int dx, int dy)
+                                            cairo_region_t *expose_region)
 {
   GdkWindow *child;
   cairo_region_t *clipped_expose_region;
@@ -3253,7 +3252,10 @@ _gdk_window_process_updates_recurse_helper (GdkWindow *window,
     return;
 
   clipped_expose_region = cairo_region_copy (expose_region);
-  cairo_region_translate (clipped_expose_region, dx, dy);
+
+  if (!gdk_window_has_impl (window))
+    cairo_region_translate (clipped_expose_region, -window->x, -window->y);
+
   cairo_region_intersect (clipped_expose_region, window->clip_region);
 
   if (cairo_region_is_empty (clipped_expose_region))
@@ -3305,7 +3307,7 @@ _gdk_window_process_updates_recurse_helper (GdkWindow *window,
 
       /* Client side child, expose */
       if (child->impl == window->impl)
-        _gdk_window_process_updates_recurse_helper ((GdkWindow *)child, clipped_expose_region, -child->x, 
-child->y);
+        _gdk_window_process_updates_recurse_helper ((GdkWindow *)child, clipped_expose_region);
     }
 
   g_list_free_full (children, g_object_unref);
@@ -3318,7 +3320,7 @@ void
 _gdk_window_process_updates_recurse (GdkWindow *window,
                                      cairo_region_t *expose_region)
 {
-  _gdk_window_process_updates_recurse_helper (window, expose_region, 0, 0);
+  _gdk_window_process_updates_recurse_helper (window, expose_region);
 }