Retain popup bubble mouse status even through updates.

ui/message_center/views/notification_view.h

Index: ui/message_center/views/notification_view.h
diff --git a/ui/message_center/views/notification_view.h b/ui/message_center/views/notification_view.h
index a607b03c30288d1b01420cb4d739113843f63a02..f0f5a9f59f607440bd79ad0620c82bb5e94681d2 100644
--- a/ui/message_center/views/notification_view.h
+++ b/ui/message_center/views/notification_view.h
@@ -52,6 +52,8 @@ class MESSAGE_CENTER_EXPORT NotificationView : public MessageView,
   virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event) OVERRIDE;
 
   // Overridden from MessageView:
+  virtual void UpdateWithNotification(
+      const Notification& notification) OVERRIDE;
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
 
@@ -69,6 +71,18 @@ class MESSAGE_CENTER_EXPORT NotificationView : public MessageView,
                    const Notification& notification);
 
  private:
+  void CreateViews(const Notification& notification);

[Jun Mukai, 2014/05/07 23:15:11]

nit: this doesn't actually create views right?  It creates if missing, or update
the contents. What about CreateOrUpdateViews()? (it doesn't sound concise
though...)

+  void SetAccessibleName(const Notification& notification);
+
+  void CreateTitleView(const Notification& notification);
+  void CreateMessageView(const Notification& notification);
+  void CreateContextMessageView(const Notification& notification);
+  void CreateProgressBarView(const Notification& notification);
+  void CreateListItemViews(const Notification& notification);
+  void CreateIconView(const Notification& notification);
+  void CreateImageView(const Notification& notification);
+  void CreateActionButtonViews(const Notification& notification);
+
   int GetMessageLineLimit(int width);
   int GetMessageHeight(int width, int limit);
 
@@ -88,6 +102,7 @@ class MESSAGE_CENTER_EXPORT NotificationView : public MessageView,
   views::View* image_view_;
   views::ProgressBar* progress_bar_view_;
   std::vector<views::View*> action_buttons_;
+  std::vector<views::View*> separators_;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationView);
 };