[gtk+] Rename the icon-shadow property

[Matthias Clasen <matthiasc src gnome org>]

commit 5f73e8a7201158aa9a378806fe381435abc87a3b
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Nov 20 20:25:33 2015 -0500

    Rename the icon-shadow property
    
    This is not a standard CSS property, so rename it to
    -gtk-icon-shadow. We still support the old name, with a
    deprecation warning.

 gtk/gtkcssprovider.c          |    4 ++--
 gtk/gtkcssstylepropertyimpl.c |    5 +++--
 2 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtkcssprovider.c b/gtk/gtkcssprovider.c
index 60a9d3b..8d1ebd0 100644
--- a/gtk/gtkcssprovider.c
+++ b/gtk/gtkcssprovider.c
@@ -1048,11 +1048,11 @@
  * - The optional blur radius is parsed, but it is currently not
  * rendered by the GTK+ theming engine.
  *
- * To set a shadow on an icon, use the `icon-shadow` property instead,
+ * To set a shadow on an icon, use the `-gtk-icon-shadow` property instead,
  * with the same syntax.
  *
  * To set multiple shadows on an element, you can specify a comma-separated list
- * of shadow elements in the `text-shadow` or `icon-shadow` property. Shadows are
+ * of shadow elements in the `text-shadow` or `-gtk-icon-shadow` property. Shadows are
  * always rendered front to back (i.e. the first shadow specified is on top of the
  * others). Shadows can thus overlay each other, but they can never overlay the
  * text or icon itself, which is always rendered on top of the shadow layer.
diff --git a/gtk/gtkcssstylepropertyimpl.c b/gtk/gtkcssstylepropertyimpl.c
index 9dd95b3..793c6d9 100644
--- a/gtk/gtkcssstylepropertyimpl.c
+++ b/gtk/gtkcssstylepropertyimpl.c
@@ -97,7 +97,7 @@ gtk_css_style_property_register (const char *                   name,
                        "initial-value", initial_value,
                        "name", name,
                        NULL);
-  
+
   node->parse_value = parse_value;
   node->query_value = query_value;
   node->assign_value = assign_value;
@@ -1570,7 +1570,7 @@ _gtk_css_style_property_init_properties (void)
                                           NULL,
                                           NULL,
                                           _gtk_css_image_value_new (gtk_css_image_builtin_new ()));
-  gtk_css_style_property_register        ("icon-shadow",
+  gtk_css_style_property_register        ("-gtk-icon-shadow",
                                           GTK_CSS_PROPERTY_ICON_SHADOW,
                                           G_TYPE_NONE,
                                           GTK_STYLE_PROPERTY_INHERIT | GTK_STYLE_PROPERTY_ANIMATED,
@@ -1579,6 +1579,7 @@ _gtk_css_style_property_init_properties (void)
                                           NULL,
                                           NULL,
                                           _gtk_css_shadows_value_new_none ());
+  _gtk_style_property_add_alias ("-gtk-icon-shadow", "icon-shadow");
   gtk_css_style_property_register        ("-gtk-icon-style",
                                           GTK_CSS_PROPERTY_ICON_STYLE,
                                           G_TYPE_NONE,