1 files changed, 5 insertions, 0 deletions
diff --git a/ui/message_center/views/message_popup_collection.h b/ui/message_center/views/message_popup_collection.h
index 6586b41..907274e 100644
--- a/ui/message_center/views/message_popup_collection.h
+++ b/ui/message_center/views/message_popup_collection.h
@@ -35,6 +35,10 @@ class WebNotificationTrayTest;
 FORWARD_DECLARE_TEST(WebNotificationTrayTest, ManyPopupNotifications);
 }
 
+namespace gfx {
+class Screen;
+}
+
 namespace message_center {
 namespace test {
 class MessagePopupCollectionTest;
@@ -184,6 +188,7 @@ class MESSAGE_CENTER_EXPORT MessagePopupCollection
   Toasts toasts_;
   gfx::Rect work_area_;
   int64 display_id_;
+  gfx::Screen* screen_;
 
   // Specifies which corner of the screen popups should show up. This should
   // ideally be the same corner the notification area (systray) is at.