[gnome-shell] window-tracker: Fix memory leak

[Florian Müllner <fmuellner src gnome org>]

commit ac22172a6ec37a158ca4cecf8c18f8fb29c1aa97
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Jan 24 10:11:49 2014 -0500

    window-tracker: Fix memory leak
    
    shell_window_tracker_get_window_app() returns a new reference
    which we need to drop once we're done.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=722927

 src/shell-window-tracker.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/shell-window-tracker.c b/src/shell-window-tracker.c
index 9c1319c..dc9257e 100644
--- a/src/shell-window-tracker.c
+++ b/src/shell-window-tracker.c
@@ -484,6 +484,8 @@ update_focus_app (ShellWindowTracker *self)
     }
 
   set_focus_app (self, new_focus_app);
+
+  g_clear_object (&new_focus_app);
 }
 
 static void