Move knowledge about MessageCenter out of MessageView.

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/gfx/animation/animation_delegate.h"
@@ skipping 13 matching lines @@
 namespace message_center {
 
 class MessageCenter;
 class MessageCenterBubble;
 class NotificationCenterButton;
 class MessageCenterButtonBar;
 class MessageCenterTray;
 class MessageCenterView;
 class MessageView;
 class MessageListView;
+class NotificationView;
 class NotifierSettingsView;
 
 // MessageCenterView ///////////////////////////////////////////////////////////
 
 class MESSAGE_CENTER_EXPORT MessageCenterView : public views::View,
                                                 public MessageCenterObserver,
                                                 public gfx::AnimationDelegate {
  public:
   MessageCenterView(MessageCenter* message_center,
                     MessageCenterTray* tray,
@@ skipping 32 matching lines @@
   // Overridden from gfx::AnimationDelegate:
   virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE;
   virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
   virtual void AnimationCanceled(const gfx::Animation* animation) OVERRIDE;
 
  private:
   friend class MessageCenterViewTest;
 
   void AddNotificationAt(const Notification& notification, int index);
   void NotificationsChanged();
-  void SetNotificationViewForTest(views::View* view);
+  void SetNotificationViewForTest(MessageView* view);
 
   MessageCenter* message_center_;  // Weak reference.
   MessageCenterTray* tray_;  // Weak reference.
-  std::vector<MessageView*> message_views_;  // Weak references.
+  // Map notification_id->NotificationView*. It contains all NotificaitonViews
+  // currently displayed in MessageCenter.
+  typedef std::map<std::string, NotificationView*> NotificationViewsMap;
+  NotificationViewsMap notification_views_;  // Weak.
 
   // Child views.
   views::ScrollView* scroller_;
   scoped_ptr<MessageListView> message_list_view_;
   scoped_ptr<views::View> empty_list_view_;
   NotifierSettingsView* settings_view_;
   MessageCenterButtonBar* button_bar_;
   bool top_down_;
 
   // Data for transition animation between settings view and message list.
@@ skipping 13 matching lines @@
   // 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_