[gtk+] docs: add docs for GtkCssProviderError

[William Jon McCann <mccann src gnome org>]

commit b28f04d6e9ef262ea0f399bfd9b082adbe976fff
Author: William Jon McCann <william jon mccann gmail com>
Date:   Tue Jan 21 10:59:53 2014 -0500

    docs: add docs for GtkCssProviderError

 gtk/gtkcssprovider.h |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkcssprovider.h b/gtk/gtkcssprovider.h
index fdcd76c..4cf2f51 100644
--- a/gtk/gtkcssprovider.h
+++ b/gtk/gtkcssprovider.h
@@ -32,6 +32,17 @@ G_BEGIN_DECLS
 
 #define GTK_CSS_PROVIDER_ERROR (gtk_css_provider_error_quark ())
 
+/**
+ * GtkCssProviderError:
+ * @GTK_CSS_PROVIDER_ERROR_FAILED: Failed.
+ * @GTK_CSS_PROVIDER_ERROR_SYNTAX: Syntax error.
+ * @GTK_CSS_PROVIDER_ERROR_IMPORT: Import error.
+ * @GTK_CSS_PROVIDER_ERROR_NAME: Name error.
+ * @GTK_CSS_PROVIDER_ERROR_DEPRECATED: Deprecation error.
+ * @GTK_CSS_PROVIDER_ERROR_UNKNOWN_VALUE: Unknown value.
+ *
+ * Deprecated.
+ */
 typedef enum
 {
   GTK_CSS_PROVIDER_ERROR_FAILED,