Enables new notifier settings dialog.

ui/message_center/message_center_bubble.cc

Index: ui/message_center/message_center_bubble.cc
diff --git a/ui/message_center/message_center_bubble.cc b/ui/message_center/message_center_bubble.cc
index 2e5d8d61c7b684c2837e0d270dab08e919733709..65a09ea9f30a0dcc307a3a755687496722e6c971 100644
--- a/ui/message_center/message_center_bubble.cc
+++ b/ui/message_center/message_center_bubble.cc
@@ -217,12 +217,11 @@ class WebNotificationButtonView2 : public WebNotificationButtonViewBase,
   // views::ButtonListener overrides:
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE {
-    // TODO(mukai): Replace ShowNotificationSettings with
-    // ShowNotificationSettingsDialog(GetWidget()->GetNativeView())
     if (sender == close_all_button())
       list_delegate()->SendRemoveAllNotifications();
     else if (sender == settings_button_)
-      list_delegate()->ShowNotificationSettings("");
+      list_delegate()->ShowNotificationSettingsDialog(
+          GetWidget()->GetNativeView());
     else
       NOTREACHED();
   }