Implement HTMLMenuItemElement.label

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

 // Copyright 2014 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 HTMLMenuItemElement_h
 #define HTMLMenuItemElement_h
 
 #include "core/html/HTMLElement.h"
 
 namespace blink {
 
 class HTMLMenuItemElement final : public HTMLElement {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   DECLARE_NODE_FACTORY(HTMLMenuItemElement);
 
+  String label() const;

[tkent, 2017/04/26 08:59:58]

nit: Add a comment of the spec URL.

// https://html.spec.whatwg.org/multipage/forms.html#dom-menuitem-label
String label() const;
void setLabel(const AtomicString&);

// https://html.spec.whatwg.org/multipage/forms.html#concept-menuitem-label
String conceptualLabel() const;

[yuzuchan, 2017/04/26 10:28:30]

Done.

+  String conceptualLabel() const;
+  void setLabel(const AtomicString&);
+
  private:
   explicit HTMLMenuItemElement(Document&);
   bool IsURLAttribute(const Attribute&) const override;
   void ParseAttribute(const AttributeModificationParams&) override;
   void DefaultEventHandler(Event*) override;
 };
 
 }  // namespace blink
 
 #endif  // HTMLMenuItemElement_h