[rhythmbox] cell-renderer-expander: use new :checked state if available

[Jonathan Matthew <jmatthew src gnome org>]

commit fa1dcf58922143d592336ab46f7761de7ffae359
Author: Jonathan Matthew <jonathan d14n org>
Date:   Sat Sep 6 17:10:10 2014 +1000

    cell-renderer-expander: use new :checked state if available

 widgets/gossip-cell-renderer-expander.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/widgets/gossip-cell-renderer-expander.c b/widgets/gossip-cell-renderer-expander.c
index 8424410..d2dbf64 100644
--- a/widgets/gossip-cell-renderer-expander.c
+++ b/widgets/gossip-cell-renderer-expander.c
@@ -284,7 +284,11 @@ gossip_cell_renderer_expander_render (GtkCellRenderer      *cell,
        if (priv->expander_style == GTK_EXPANDER_COLLAPSED) {
                state |= GTK_STATE_FLAG_NORMAL;
        } else {
+#if GTK_CHECK_VERSION(3,13,7)
+               state |= GTK_STATE_FLAG_CHECKED;
+#else
                state |= GTK_STATE_FLAG_ACTIVE;
+#endif
        }
 
        gtk_style_context_set_state (style_context, state);