GTK: unbreak extension badges.

chrome/browser/extensions/browser_action_test_util_gtk.cc

Index: chrome/browser/extensions/browser_action_test_util_gtk.cc
diff --git a/chrome/browser/extensions/browser_action_test_util_gtk.cc b/chrome/browser/extensions/browser_action_test_util_gtk.cc
index 7761946e3e26f72139b94c761ee58c93b86a3dbb..99a3bc780cd2771ee214890becb8140a71d1a421 100644
--- a/chrome/browser/extensions/browser_action_test_util_gtk.cc
+++ b/chrome/browser/extensions/browser_action_test_util_gtk.cc
@@ -15,13 +15,14 @@
 namespace {
 
 GtkWidget* GetButton(Browser* browser, int index) {
-  GtkWidget* button = NULL;
   GtkWidget* toolbar =
       ViewIDUtil::GetWidget(GTK_WIDGET(browser->window()->GetNativeHandle()),
                             VIEW_ID_BROWSER_ACTION_TOOLBAR);
+  GtkWidget* button = NULL;
   if (toolbar) {
     GList* children = gtk_container_get_children(GTK_CONTAINER(toolbar));
-    button = static_cast<GtkWidget*>(g_list_nth(children, index)->data);
+    GtkWidget* alignment = static_cast<GtkWidget*>(g_list_nth(children, index)->data);
+    button = gtk_bin_get_child(GTK_BIN(alignment));
     g_list_free(children);
   }
   return button;