Message center re-organized

ui/message_center/views/message_center_view.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_MESSAGE_CENTER_VIEWS_MESSAGE_CENTER_VIEW_H_
 #define UI_MESSAGE_CENTER_VIEWS_MESSAGE_CENTER_VIEW_H_
 
 #include "ui/views/view.h"
 
 #include "ui/base/animation/animation_delegate.h"
@@ skipping 55 matching lines @@
 
 // MessageCenterView ///////////////////////////////////////////////////////////
 
 class MESSAGE_CENTER_EXPORT MessageCenterView : public views::View,
                                                 public MessageCenterObserver,
                                                 public ui::AnimationDelegate {
  public:
   MessageCenterView(MessageCenter* message_center,
                     MessageCenterTray* tray,
                     int max_height,
-                    bool initially_settings_visible);
+                    bool initially_settings_visible,
+                    bool buttons_at_top = false);
   virtual ~MessageCenterView();
 
   void SetNotifications(const NotificationList::Notifications& notifications);
 
   void ClearAllNotifications();
   void OnAllNotificationsCleared();
 
   size_t NumMessageViewsForTest() const;
 
   void SetSettingsVisible(bool visible);
@@ skipping 26 matching lines @@
   void SetNotificationViewForTest(views::View* view);
 
   MessageCenter* message_center_;  // Weak reference.
   MessageCenterTray* tray_;  // Weak reference.
   std::vector<MessageView*> message_views_;
   views::ScrollView* scroller_;
   MessageListView* message_list_view_;
   NotifierSettingsView* settings_view_;
   MessageCenterButtonBar* button_bar_;
   views::View* no_notifications_message_view_;
+  bool buttons_at_top_;
 
   // Data for transition animation between settings view and message list.
   bool settings_visible_;
   views::View* source_view_;
   views::View* target_view_;
   int source_height_;
   int target_height_;
   scoped_ptr<ui::MultiAnimation> settings_transition_animation_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageCenterView);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_VIEWS_MESSAGE_CENTER_VIEW_H_