Not Remove Non-Closable Arc Popup When Close Button is Pressed

ui/message_center/views/custom_notification_view.cc

Index: ui/message_center/views/custom_notification_view.cc
diff --git a/ui/message_center/views/custom_notification_view.cc b/ui/message_center/views/custom_notification_view.cc
index 90a946bc562b48a627fe6da1ad5c35e656a06a7b..bb6a4e43bb0510b059886a03df60c8a53752fe8a 100644
--- a/ui/message_center/views/custom_notification_view.cc
+++ b/ui/message_center/views/custom_notification_view.cc
@@ -19,6 +19,9 @@
 
 namespace message_center {
 
+// static
+const char CustomNotificationView::kViewClassName[] = "CustomNotificationView";
+
 CustomNotificationView::CustomNotificationView(
     MessageCenterController* controller,
     const Notification& notification)
@@ -78,6 +81,10 @@ bool CustomNotificationView::IsPinned() const {
   return contents_view_delegate_->IsPinned();
 }
 
+const char* CustomNotificationView::GetClassName() const {
+  return kViewClassName;
+}
+
 void CustomNotificationView::UpdateControlButtonsVisibility() {
   if (contents_view_delegate_)
     contents_view_delegate_->UpdateControlButtonsVisibility();