[gtk+] GtkSearchEngine: Add debug spew

[Matthias Clasen <matthiasc src gnome org>]

commit b3abfaf9eec5c00d20a15e30f32b4b197efc6161
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 14 00:57:29 2015 -0500

    GtkSearchEngine: Add debug spew
    
    This lets us find out which search engine implementation is
    in use.

 gtk/gtksearchengine.c |   17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtksearchengine.c b/gtk/gtksearchengine.c
index c6529b9..5ca9de0 100644
--- a/gtk/gtksearchengine.c
+++ b/gtk/gtksearchengine.c
@@ -100,18 +100,27 @@ _gtk_search_engine_new (void)
 #ifdef HAVE_TRACKER
   engine = _gtk_search_engine_tracker_new ();
   if (engine)
-    return engine;
+    {
+      g_debug ("Using Tracker search engine");
+      return engine;
+    }
 #endif
   
 #ifdef GDK_WINDOWING_QUARTZ
   engine = _gtk_search_engine_quartz_new ();
   if (engine)
-    return engine;
+    {
+      g_debug ("Using Quartz search engine");
+      return engine;
+    }
 #endif
 
   if (g_thread_supported ())
-    engine = _gtk_search_engine_simple_new ();
-  
+    {
+      g_debug ("Using simple search engine");
+      engine = _gtk_search_engine_simple_new ();
+    }
+
   return engine;
 }