Do not hide the web notification popups by the system tray, rather let them avoid (2nd)

ash/system/status_area_widget.h

Index: ash/system/status_area_widget.h
diff --git a/ash/system/status_area_widget.h b/ash/system/status_area_widget.h
index 405671022efd0a308625eab1ec3b8f07cbe8d1b2..5283535f5a072dee675f6b7f1d44b2352ef10296 100644
--- a/ash/system/status_area_widget.h
+++ b/ash/system/status_area_widget.h
@@ -37,9 +37,6 @@ class ASH_EXPORT StatusAreaWidget : public views::Widget {
   // Update the alignment of the widget and tray views.
   void SetShelfAlignment(ShelfAlignment alignment);
 
-  // Set the visibility state of web notifications.
-  void SetHideWebNotifications(bool hide);
-
   // Set the visibility of system notifications.
   void SetHideSystemNotifications(bool hide);