[gtk+] stylecontext: add a "scrollbars-junction" style class

[Cosimo Cecchi <cosimoc src gnome org>]

commit 1411020a8b7991748076ae38b6e13a0b31c96e68
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Feb 3 14:03:28 2012 -0500

    stylecontext: add a "scrollbars-junction" style class
    
    It will be used in the following commit.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=669335

 docs/reference/gtk/gtk3-sections.txt |    1 +
 gtk/gtkstylecontext.h                |   10 ++++++++++
 2 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gtk/gtk3-sections.txt b/docs/reference/gtk/gtk3-sections.txt
index cdcad3f..5126e89 100644
--- a/docs/reference/gtk/gtk3-sections.txt
+++ b/docs/reference/gtk/gtk3-sections.txt
@@ -5633,6 +5633,7 @@ GTK_STYLE_CLASS_MENU
 GTK_STYLE_CLASS_RADIO
 GTK_STYLE_CLASS_RUBBERBAND
 GTK_STYLE_CLASS_SCROLLBAR
+GTK_STYLE_CLASS_SCROLLBARS_JUNCTION
 GTK_STYLE_CLASS_SLIDER
 GTK_STYLE_CLASS_TOOLTIP
 GTK_STYLE_CLASS_TROUGH
diff --git a/gtk/gtkstylecontext.h b/gtk/gtkstylecontext.h
index 16a8c05..dc528ef 100644
--- a/gtk/gtkstylecontext.h
+++ b/gtk/gtkstylecontext.h
@@ -333,6 +333,16 @@ struct _GtkStyleContextClass
 #define GTK_STYLE_CLASS_SCROLLBAR "scrollbar"
 
 /**
+ * GTK_STYLE_CLASS_SCROLLBARS_JUNCTION:
+ *
+ * A CSS class to match the junction area between an horizontal
+ * and vertical scrollbar, when they're both shown.
+ * 
+ * This is used in #GtkScrolledWindow.
+ */
+#define GTK_STYLE_CLASS_SCROLLBARS_JUNCTION "scrollbars-junction"
+
+/**
  * GTK_STYLE_CLASS_SCALE:
  *
  * A CSS class to match scale widgets.