Implement Non-Closable Notification

ui/message_center/views/message_list_view.h

 // Copyright (c) 2015 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_LIST_VIEW_H_
 #define UI_MESSAGE_CENTER_VIEWS_MESSAGE_LIST_VIEW_H_
 
 #include <list>
 #include <set>
 
@@ skipping 28 matching lines @@
  public:
   explicit MessageListView(MessageCenterView* message_center_view,
                            bool top_down);
   ~MessageListView() override;
 
   void AddNotificationAt(MessageView* view, int i);
   void RemoveNotification(MessageView* view);
   void UpdateNotification(MessageView* view, const Notification& notification);
   void SetRepositionTarget(const gfx::Rect& target_rect);
   void ResetRepositionSession();
-  void ClearAllNotifications(const gfx::Rect& visible_scroll_rect);
+  void ClearAllClosableNotifications(const gfx::Rect& visible_scroll_rect);
 
   MESSAGE_CENTER_EXPORT void SetRepositionTargetForTest(
       const gfx::Rect& target_rect);
 
  protected:
   // Overridden from views::View.
   void Layout() override;
   gfx::Size GetPreferredSize() const override;
   int GetHeightForWidth(int width) const override;
   void PaintChildren(const ui::PaintContext& context) override;
@@ skipping 45 matching lines @@
   // If true, the message loop will be quitted after the animation finishes.
   // This is just for tests and has no setter.
   bool quit_message_loop_after_animation_for_test_;
 
   base::WeakPtrFactory<MessageListView> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(MessageListView);
 };
 
 }  // namespace message_center
 #endif  // UI_MESSAGE_CENTER_VIEWS_MESSAGE_LIST_VIEW_H_