Implement contextmenu attribute with basic support of <menu>

Source/core/events/RelatedEvent.h

Index: Source/core/events/RelatedEvent.h
diff --git a/Source/core/events/RelatedEvent.h b/Source/core/events/RelatedEvent.h
new file mode 100644
index 0000000000000000000000000000000000000000..eb99c000b02bfc0574d79902baae2d5fab64fcbb
--- /dev/null
+++ b/Source/core/events/RelatedEvent.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
+ * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
+ * Copyright (C) 2003, 2004, 2005, 2006, 2008 Apple 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
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef RelatedEvent_h
+#define RelatedEvent_h
+
+#include "core/events/Event.h"
+
+namespace WebCore {
+
+struct RelatedEventInit : public EventInit {
+    RelatedEventInit();
+    RefPtr<EventTarget> relatedTarget;
+};
+
+class RelatedEvent : public Event {

[esprehn, 2014/05/20 05:51:34]

FINAL

[pals, 2014/05/21 07:55:12]

Done.

+public:
+

[esprehn, 2014/05/20 05:51:34]

no new line after sections

[pals, 2014/05/21 07:55:12]

Done.

+    static PassRefPtr<RelatedEvent> create()

[esprehn, 2014/05/20 05:51:34]

This method doesn't make sense, what's the type of this event?

[pals, 2014/05/21 07:55:12]

This is needed here
https://code.google.com/p/chromium/codesearch#chromium/src/out/Debug/gen/blin...

I followed the CustomEvent implementation
https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit...

Other events implementations are similar.
https://code.google.com/p/chromium/codesearch#search/&q=create%20package:%5Ec...

+    {
+        return adoptRef(new RelatedEvent);
+    }
+
+    static PassRefPtr<RelatedEvent> create(const AtomicString& eventType);
+    static PassRefPtr<RelatedEvent> create(const AtomicString& eventType, const RelatedEventInit&);
+
+    virtual ~RelatedEvent();
+
+    EventTarget* relatedTarget() const { return m_relatedTarget.get(); }
+    EventTarget* relatedTarget(bool& isNull) const { isNull = !m_relatedTarget; return m_relatedTarget.get(); }
+    void setRelatedTarget(PassRefPtr<EventTarget> relatedTarget) { m_relatedTarget = relatedTarget; }
+
+
+    virtual const AtomicString& interfaceName() const OVERRIDE;
+    bool isRelatedEvent() const;
+
+
+protected:
+

[esprehn, 2014/05/20 05:51:34]

no new line.

[pals, 2014/05/21 07:55:12]

Done.

+    RelatedEvent();
+    RelatedEvent(const AtomicString& type);
+    RelatedEvent(const AtomicString& type, const RelatedEventInit&);
+
+private:
+    RefPtr<EventTarget> m_relatedTarget;
+};
+
+DEFINE_EVENT_TYPE_CASTS(RelatedEvent);
+
+} // namespace WebCore
+
+#endif // RelatedEvent_h