Made notification center notifications collapsed and expandable.

ui/message_center/message_popup_bubble.cc

Index: ui/message_center/message_popup_bubble.cc
diff --git a/ui/message_center/message_popup_bubble.cc b/ui/message_center/message_popup_bubble.cc
index 3b27a4a81287b36055a08ac0c6fd0f50dfdd39dd..eb673bac01e2796c1c0a9c16385d2b18db18ed34 100644
--- a/ui/message_center/message_popup_bubble.cc
+++ b/ui/message_center/message_popup_bubble.cc
@@ -66,7 +66,7 @@ void PopupBubbleContentsView::Update(
        iter != popup_notifications.end(); ++iter) {
     MessageView* view =
         NotificationView::ViewForNotification(*iter, list_delegate_);
-    view->SetUpView();
+    view->SetExpanded(true);

[dharcourt, 2013/02/23 04:32:00]

NotificationViews are expanded by default in the popup/alerts/toasts because
MessagePopupBubble isn't set up yet to deal with the changes in view size which
could come if the views were initially collapsed and allowed to be expanded by
the user.

[Jun Mukai, 2013/02/26 02:23:30]

Can you leave this as comment?

[dharcourt, 2013/02/26 03:23:30]

Done.

     content_->AddChildView(view);
   }
   content_->SizeToPreferredSize();