[mutter] MetaBorder: Use float constants and functions instead of double variants

[Jonas Ådahl <jadahl src gnome org>]

commit bc1dd1cee4318a67f9e17cbe519308330fd76eeb
Author: Jonas Ådahl <jadahl gmail com>
Date:   Tue Jul 7 13:06:27 2015 +0800

    MetaBorder: Use float constants and functions instead of double variants
    
    We calculate with floats, so lets use that type throughout.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=744104

 src/core/meta-border.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/core/meta-border.c b/src/core/meta-border.c
index cc996fe..3c926c4 100644
--- a/src/core/meta-border.c
+++ b/src/core/meta-border.c
@@ -92,7 +92,7 @@ meta_line2_intersects_with (const MetaLine2 *line1,
   sxr = meta_vector2_cross_product (s, r);
 
   /* If r × s = 0 then the lines are either parallel or collinear. */
-  if (fabs (rxs) < DBL_MIN)
+  if (fabsf (rxs) < FLT_MIN)
     return FALSE;
 
   t = meta_vector2_cross_product (meta_vector2_subtract (q, p), s) / rxs;