Menulist SELECT element should update layout when an OPTION content is changed.

third_party/WebKit/Source/core/html/HTMLSelectElement.h

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 68 matching lines @@
     void remove(int index);
 
     String value() const;
     void setValue(const String&, bool sendEvents = false);
     String suggestedValue() const;
     void setSuggestedValue(const String&);
 
     HTMLOptionsCollection* options();
     HTMLCollection* selectedOptions();
 
-    void optionElementChildrenChanged();
+    void optionElementChildrenChanged(const HTMLOptionElement&);
 
     void setRecalcListItems();
     void invalidateSelectedItems();
 
     using ListItems = HeapVector<Member<HTMLElement>>;
     const ListItems& listItems() const;
 
     void accessKeyAction(bool sendMouseEvents) override;
     void accessKeySetSelectedIndex(int);
 
@@ skipping 178 matching lines @@
 
     FRIEND_TEST_ALL_PREFIXES(HTMLSelectElementTest, FirstSelectableOption);
     FRIEND_TEST_ALL_PREFIXES(HTMLSelectElementTest, LastSelectableOption);
     FRIEND_TEST_ALL_PREFIXES(HTMLSelectElementTest, NextSelectableOption);
     FRIEND_TEST_ALL_PREFIXES(HTMLSelectElementTest, PreviousSelectableOption);
 };
 
 } // namespace blink
 
 #endif // HTMLSelectElement_h