Move overflow indicator to notifiction header.

ui/message_center/views/notification_view_md.h

 // Copyright (c) 2012 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_NOTIFICATION_VIEW_MD_H_
 #define UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_MD_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
@@ skipping 68 matching lines @@
   void CreateOrUpdateCloseButtonView(const Notification& notification);
   void CreateOrUpdateSettingsButtonView(const Notification& notification);
 
   bool IsExpandable();
   void ToggleExpanded();
   void UpdateViewForExpandedState(bool expanded);
 
   // Whether this notification is expanded or not.
   bool expanded_ = false;
 
+  // Number of total list items in the given Notification class.
+  int list_items_count_ = 0;
+
   // Describes whether the view should display a hand pointer or not.
   bool clickable_;
 
   // Container views directly attached to this view.
   NotificationHeaderView* header_row_ = nullptr;
   views::View* content_row_ = nullptr;
   views::View* actions_row_ = nullptr;
 
   // Containers for left and right side on |content_row_|
   views::View* left_content_ = nullptr;
   views::View* right_content_ = nullptr;
 
   // Views which are dinamicallly created inside view hierarchy.
   views::Label* title_view_ = nullptr;
   BoundedLabel* message_view_ = nullptr;
   ProportionalImageView* icon_view_ = nullptr;
   views::View* image_container_ = nullptr;
   ProportionalImageView* image_view_ = nullptr;
   std::vector<views::LabelButton*> action_buttons_;
   std::vector<ItemView*> item_views_;
   views::ProgressBar* progress_bar_view_ = nullptr;
   CompactTitleMessageView* compact_title_message_view_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationViewMD);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_MD_H_