[cairo] [PATCH 6/8] xml: constify source objects for emit routines

[Bryce W. Harrington]

This quells the following warnings:

  src/cairo-xml-surface.c:576:5: warning: passing argument 2 of
  ‘_cairo_xml_surface_emit_clip_boxes’ discards ‘const’ qualifier from
  pointer target type
  src/cairo-xml-surface.c:462:1: note: expected ‘struct cairo_clip_t
  *’ but argument is of type ‘const struct cairo_clip_t *’

Most of the cairo_xml*emit* routines const their source objects;
these should follow suit.

Signed-off-by: Bryce Harrington <b.harrington at samsung.com>
---
 src/cairo-xml-surface.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/cairo-xml-surface.c b/src/cairo-xml-surface.c
index a6ba6d0..71267d7 100644
--- a/src/cairo-xml-surface.c
+++ b/src/cairo-xml-surface.c
@@ -460,7 +460,7 @@ to_xml (cairo_xml_surface_t *surface)
 
 static cairo_status_t
 _cairo_xml_surface_emit_clip_boxes (cairo_xml_surface_t *surface,
-				    cairo_clip_t *clip)
+				    const cairo_clip_t *clip)
 {
     cairo_box_t *box;
     cairo_xml_t *xml;
@@ -520,7 +520,7 @@ _cairo_xml_surface_emit_clip_boxes (cairo_xml_surface_t *surface,
 
 static cairo_status_t
 _cairo_xml_surface_emit_clip_path (cairo_xml_surface_t *surface,
-				   cairo_clip_path_t *clip_path)
+				   const cairo_clip_path_t *clip_path)
 {
     cairo_box_t box;
     cairo_status_t status;
-- 
1.7.9.5