Tweak pixel-by-pixel layout for Notifications message center.

ui/message_center/views/notifier_settings_view.h

Index: ui/message_center/views/notifier_settings_view.h
diff --git a/ui/message_center/views/notifier_settings_view.h b/ui/message_center/views/notifier_settings_view.h
index 96b8faa042728f461fc4fac56ca333dfa83e8622..5e64ab944b331b48fa0332bee4c55d3ea48615a6 100644
--- a/ui/message_center/views/notifier_settings_view.h
+++ b/ui/message_center/views/notifier_settings_view.h
@@ -17,6 +17,7 @@
 
 namespace views {
 class Label;
+class MenuButton;
 class MenuRunner;
 }
 
@@ -66,6 +67,7 @@ class MESSAGE_CENTER_EXPORT NotifierSettingsView
 
   views::ImageButton* title_arrow_;
   views::Label* title_label_;
+  views::MenuButton* notifier_group_selector_;
   views::ScrollView* scroller_;
   NotifierSettingsProvider* provider_;
   std::set<NotifierButton*> buttons_;