Implement contextmenu attribute with basic support of <menu>

Source/core/html/HTMLMenuElement.h

Index: Source/core/html/HTMLMenuElement.h
diff --git a/Source/core/html/HTMLMenuElement.h b/Source/core/html/HTMLMenuElement.h
index 4df4c6d101c958c73ef67b628344d6158ab3c0e9..2fbcef80ec56543221e27b5dcfe36593f2b9b994 100644
--- a/Source/core/html/HTMLMenuElement.h
+++ b/Source/core/html/HTMLMenuElement.h
@@ -23,16 +23,34 @@
 #ifndef HTMLMenuElement_h
 #define HTMLMenuElement_h
 
+#include "core/html/CustomContextMenuProvider.h"
 #include "core/html/HTMLElement.h"
+#include "core/page/ContextMenuProvider.h"
+#include "platform/ContextMenu.h"
+#include "platform/ContextMenuItem.h"
 
 namespace WebCore {
 
+class HTMLMenuElement;
+class CustomContextMenuProvider;

[Inactive, 2014/07/16 20:07:26]

You already include this.

[pals, 2014/07/17 15:35:47]

Done.

+
 class HTMLMenuElement FINAL : public HTMLElement {
 public:
     DECLARE_NODE_FACTORY(HTMLMenuElement);
 
+    virtual void defaultEventHandler(Event*) OVERRIDE;
+
+    CustomContextMenuProvider* menuProvider() { return m_menuProvider.get(); }
+    CustomContextMenuProvider& ensureMenuProvider();
+    void populateContextMenuItems(HTMLMenuElement*, ContextMenu&);
+    HTMLElement* menuItemAt(unsigned menuId);
+    HTMLElement * subjectElement() { return m_subject.get(); }

[Inactive, 2014/07/16 20:07:26]

nit: space before star

[pals, 2014/07/17 15:35:47]

Done.

+
 private:
     explicit HTMLMenuElement(Document&);
+    RefPtr<CustomContextMenuProvider> m_menuProvider;

[Inactive, 2014/07/16 20:07:26]

nit: I would add a blink line to separate the class members from the methods.

[pals, 2014/07/17 15:35:47]

Done.

+    RefPtr<HTMLElement> m_subject;
+    Vector<HTMLElement*> m_menuItems;
 };
 
 } //namespace