all: Name more idles and timeouts

Following up from 438cd857c4,
name more timeouts and idles.

The original grep was missing checking for gdk_threads_add_*()
functions (at least for some of the files).

https://bugzilla.gnome.org/show_bug.cgi?id=726870

gtk/gtkrecentchooserdefault.c

@@ -833,6 +833,7 @@ reload_recent_items (GtkRecentChooserDefault *impl)
                                              load_recent_items,
                                              impl,
                                              cleanup_after_load);
+  g_source_set_name_by_id (impl->priv->load_id, "[gtk+] load_recent_items");
 }
 
 /* taken form gtkfilechooserdialog.c */