[gtk+] label: Don't leak clip regions

[Matthias Clasen <matthiasc src gnome org>]

commit 6bdebd157048678a0b067e1492cff3ac0717e35d
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Sep 1 15:32:48 2017 -0400

    label: Don't leak clip regions
    
    This was introduced in the conversion to gsk.

 gtk/gtklabel.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index 4f87501..a54fa29 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -3948,11 +3948,14 @@ gtk_label_snapshot (GtkWidget   *widget,
 
           range_clip = gdk_pango_layout_get_clip_region (priv->layout, lx, ly, range, 1);
           cairo_region_get_extents (range_clip, &clip_extents);
+
           gtk_snapshot_push_clip (snapshot, &GRAPHENE_RECT_FROM_RECT (&clip_extents), "Selected Text");
           gtk_snapshot_render_background (snapshot, context, x, 0, width, height);
           gtk_snapshot_render_layout (snapshot, context, lx, ly, priv->layout);
           gtk_snapshot_pop (snapshot);
 
+          cairo_region_destroy (range_clip);
+
           gtk_style_context_restore (context);
         }
       else if (info)
@@ -3995,6 +3998,8 @@ gtk_label_snapshot (GtkWidget   *widget,
               gtk_snapshot_render_layout (snapshot, context, lx, ly, priv->layout);
               gtk_snapshot_pop (snapshot);
 
+              cairo_region_destroy (range_clip);
+
               gtk_style_context_restore (context);
             }