[gtk+] Don't use hicolor as the default icon-theme

[Matthias Clasen <matthiasc src gnome org>]

commit 2488b954f24c01f99995ff22898628c57b4aedc1
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 26 23:15:53 2014 -0400

    Don't use hicolor as the default icon-theme
    
    The icontheme lookup code has a special-case that prefers builtin icons
    if the theme name is "hicolor". This is problematic for our reftests,
    which run in a barebones environment with not settings.

 gtk/gtksettings.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtksettings.c b/gtk/gtksettings.c
index 2fd2108..382fecf 100644
--- a/gtk/gtksettings.c
+++ b/gtk/gtksettings.c
@@ -449,7 +449,7 @@ gtk_settings_class_init (GtkSettingsClass *class)
                                              g_param_spec_string ("gtk-icon-theme-name",
                                                                   P_("Icon Theme Name"),
                                                                   P_("Name of icon theme to use"),
-                                                                  "hicolor",
+                                                                  "Adwaita",
                                                                   GTK_PARAM_READWRITE),
                                              NULL);
   g_assert (result == PROP_ICON_THEME_NAME);