Notifications: Retain button hover state during content updates.

ui/message_center/views/notification_view.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_H_
 #define UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_
 
 #include <vector>
 
 #include "ui/message_center/message_center_export.h"
 #include "ui/message_center/views/message_view.h"
 
 namespace views {
 class ProgressBar;
 }
 
 namespace message_center {
 
 class BoundedLabel;
 class MessageCenter;
 class MessageCenterController;
+class NotificationButton;
 class NotificationView;
 class PaddedButton;
 
 // View that displays all current types of notification (web, basic, image, and
 // list). Future notification types may be handled by other classes, in which
 // case instances of those classes would be returned by the Create() factory
 // method below.
 class MESSAGE_CENTER_EXPORT NotificationView : public MessageView,
                                                public MessageViewController {
  public:
@@ skipping 33 matching lines @@
     controller_ = controller;
   }
 
  protected:
   NotificationView(MessageCenterController* controller,
                    const Notification& notification);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(NotificationViewTest, CreateOrUpdateTest);
   FRIEND_TEST_ALL_PREFIXES(NotificationViewTest, TestLineLimits);
+  FRIEND_TEST_ALL_PREFIXES(NotificationViewTest, UpdateButtonsStateTest);
 
   void CreateOrUpdateViews(const Notification& notification);
   void SetAccessibleName(const Notification& notification);
 
   void CreateOrUpdateTitleView(const Notification& notification);
   void CreateOrUpdateMessageView(const Notification& notification);
   void CreateOrUpdateContextMessageView(const Notification& notification);
   void CreateOrUpdateProgressBarView(const Notification& notification);
   void CreateOrUpdateListItemViews(const Notification& notification);
   void CreateOrUpdateIconView(const Notification& notification);
@@ skipping 11 matching lines @@
   // Weak references to NotificationView descendants owned by their parents.
   views::View* top_view_;
   BoundedLabel* title_view_;
   BoundedLabel* message_view_;
   BoundedLabel* context_message_view_;
   std::vector<views::View*> item_views_;
   views::View* icon_view_;
   views::View* bottom_view_;
   views::View* image_view_;
   views::ProgressBar* progress_bar_view_;
-  std::vector<views::View*> action_buttons_;
+  std::vector<NotificationButton*> action_buttons_;
   std::vector<views::View*> separators_;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationView);
 };
 
 }  // namespace message_center
 
 #endif // UI_MESSAGE_CENTER_VIEWS_NOTIFICATION_VIEW_H_