[gtk] Don't show empty status bubble in kiosk mode.

BUG=67956
TEST=manual

Review URL: http://codereview.chromium.org/6330005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71858 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/gtk/status_bubble_gtk.cc

@@ -255,6 +255,7 @@ void StatusBubbleGtk::InitWidgets() {
   gtk_container_add(GTK_CONTAINER(padding_), label_);
 
   container_.Own(gtk_event_box_new());
+  gtk_widget_set_no_show_all(container_.get(), TRUE);
   gtk_util::ActAsRoundedWindow(
       container_.get(), gtk_util::kGdkWhite, kCornerSize,
       gtk_util::ROUNDED_TOP_RIGHT,