[gtk+] gskrendernode: Constify some parameters

[Timm Bäder <baedert src gnome org>]

commit 4045794801cdf29bb3b89685a0fcfb20347a5cf2
Author: Timm Bäder <mail baedert org>
Date:   Mon Aug 28 17:38:57 2017 +0200

    gskrendernode: Constify some parameters

 gsk/gskrendernodeimpl.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/gsk/gskrendernodeimpl.c b/gsk/gskrendernodeimpl.c
index 996f270..4ecd0af 100644
--- a/gsk/gskrendernodeimpl.c
+++ b/gsk/gskrendernodeimpl.c
@@ -833,8 +833,8 @@ has_empty_clip (cairo_t *cr)
 static void
 draw_shadow (cairo_t             *cr,
              gboolean             inset,
-            GskRoundedRect      *box,
-            GskRoundedRect      *clip_box,
+             const GskRoundedRect*box,
+             const GskRoundedRect*clip_box,
              float                radius,
              const GdkRGBA       *color,
             GskBlurFlags         blur_flags)
@@ -898,8 +898,8 @@ corner_mask_equal (CornerMask *mask1,
 static void
 draw_shadow_corner (cairo_t               *cr,
                     gboolean               inset,
-                    GskRoundedRect        *box,
-                    GskRoundedRect        *clip_box,
+                    const GskRoundedRect  *box,
+                    const GskRoundedRect  *clip_box,
                     float                  radius,
                     const GdkRGBA         *color,
                     GskCorner              corner,
@@ -1038,8 +1038,8 @@ draw_shadow_corner (cairo_t               *cr,
 static void
 draw_shadow_side (cairo_t               *cr,
                   gboolean               inset,
-                  GskRoundedRect        *box,
-                  GskRoundedRect        *clip_box,
+                  const GskRoundedRect  *box,
+                  const GskRoundedRect  *clip_box,
                   float                  radius,
                   const GdkRGBA         *color,
                   Side                   side,