[gnome-builder] plugins: be sure to have the css hash table

[Sébastien Lafargue <slafargue src gnome org>]

commit a76fba3769557cf3052817867d3e5540b74f2381
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Sat Mar 5 13:43:27 2016 +0100

    plugins: be sure to have the css hash table

 libide/ide-application-plugins.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/libide/ide-application-plugins.c b/libide/ide-application-plugins.c
index 1e7ae06..1477822 100644
--- a/libide/ide-application-plugins.c
+++ b/libide/ide-application-plugins.c
@@ -384,6 +384,9 @@ ide_application_unload_plugin_css (IdeApplication *self,
   g_assert (plugin_info != NULL);
   g_assert (PEAS_IS_ENGINE (engine));
 
+  if (self->plugin_css == NULL)
+    self->plugin_css = g_hash_table_new_full (NULL, NULL, NULL, g_object_unref);
+
   provider = g_hash_table_lookup (self->plugin_css, plugin_info);
 
   if (provider != NULL)