Update notification settings to allow for multiprofile situations.

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 36 matching lines @@
   virtual ~MessageCenterView();
 
   void SetNotifications(const NotificationList::Notifications& notifications);
 
   void ClearAllNotifications();
   void OnAllNotificationsCleared();
 
   size_t NumMessageViewsForTest() const;
 
   void SetSettingsVisible(bool visible);
+  void OnSettingsChanged();
   bool settings_visible() const { return settings_visible_; }
 
   void SetIsClosing(bool is_closing);
 
  protected:
   // Overridden from views::View:
   virtual void Layout() OVERRIDE;
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual int GetHeightForWidth(int width) OVERRIDE;
   virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
@@ skipping 12 matching lines @@
 
  private:
   friend class MessageCenterViewTest;
 
   void AddNotificationAt(const Notification& notification, int index);
   void NotificationsChanged();
   void SetNotificationViewForTest(views::View* view);
 
   MessageCenter* message_center_;  // Weak reference.
   MessageCenterTray* tray_;  // Weak reference.
-  std::vector<MessageView*> message_views_;
+  std::vector<MessageView*> message_views_;  // Weak references.
+
+  // Child views.
   views::ScrollView* scroller_;
   MessageListView* message_list_view_;
   NotifierSettingsView* settings_view_;
   MessageCenterButtonBar* button_bar_;
   views::View* no_notifications_message_view_;
   bool top_down_;
 
   // Data for transition animation between settings view and message list.
   bool settings_visible_;
+
+  // Animation managing transition between message center and settings (and vice
+  // versa).
+  scoped_ptr<ui::MultiAnimation> settings_transition_animation_;
+
+  // Helper data to keep track of the transition between settings and
+  // message center views.
   views::View* source_view_;
+  int source_height_;
   views::View* target_view_;
-  int source_height_;
   int target_height_;
-  scoped_ptr<ui::MultiAnimation> settings_transition_animation_;
 
   // True when the widget is closing so that further operations should be
   // ignored.
   bool is_closing_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageCenterView);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_VIEWS_MESSAGE_CENTER_VIEW_H_