[libchamplain] scale: Stop invalidate_canvas idle callback

[Jiří Techet <jiritechet src gnome org>]

commit 71e70cc37bdbaca307d3270991d2fd0ca140890e
Author: Jiří Techet <techet gmail com>
Date:   Mon Aug 11 21:17:32 2014 +0200

    scale: Stop invalidate_canvas idle callback

 champlain/champlain-scale.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/champlain/champlain-scale.c b/champlain/champlain-scale.c
index b363ba3..5f84fe4 100644
--- a/champlain/champlain-scale.c
+++ b/champlain/champlain-scale.c
@@ -337,13 +337,15 @@ redraw_scale (ClutterCanvas *canvas,
 }
 
 
-static void
+static gboolean
 invalidate_canvas (ChamplainScale *layer)
 {
   ChamplainScalePrivate *priv = layer->priv;
 
   clutter_content_invalidate (priv->canvas);
   priv->redraw_scheduled = FALSE;
+
+  return FALSE;
 }