[mutter/wayland] idle-monitor: Actually get the check for is_wayland_compositor correctly

[Jasper St. Pierre <jstpierre src gnome org>]

commit c1e3a6b742e5e947aa973e0d6e5c83124d3e9b07
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Tue Apr 1 16:05:20 2014 -0400

    idle-monitor: Actually get the check for is_wayland_compositor correctly
    
    If we're a Wayland compositor we shouldn't be taking this path, ever.

 src/backends/meta-idle-monitor.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/backends/meta-idle-monitor.c b/src/backends/meta-idle-monitor.c
index 7d9d293..4c4357a 100644
--- a/src/backends/meta-idle-monitor.c
+++ b/src/backends/meta-idle-monitor.c
@@ -358,7 +358,7 @@ meta_idle_monitor_xsync_handle_xevent_all (XEvent *xevent)
 {
   int i;
 
-  if (!meta_is_wayland_compositor ())
+  if (meta_is_wayland_compositor ())
     return;
 
   for (i = 0; i <= device_id_max; i++)