[sysprof/wip/visualizers] window: use floor() instead of ceil()

[Christian Hergert <chergert src gnome org>]

commit 9bd3891d4325f4441da5eb1063991d1ba78325d8
Author: Christian Hergert <chergert redhat com>
Date:   Wed Sep 28 18:08:34 2016 -0700

    window: use floor() instead of ceil()
    
    Otherwise we get 111% instead of 110%.

 src/sp-window.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/sp-window.c b/src/sp-window.c
index 93e011c..4a3f357 100644
--- a/src/sp-window.c
+++ b/src/sp-window.c
@@ -724,7 +724,7 @@ zoom_level_to_string (GBinding     *binding,
                       gpointer      user_data)
 {
   gdouble percent = 100.0 * g_value_get_double (from_value);
-  g_value_take_string (to_value, g_strdup_printf ("%u%%", (guint)ceil (percent)));
+  g_value_take_string (to_value, g_strdup_printf ("%u%%", (guint)floor (percent)));
   return TRUE;
 }