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..0b471e26e64fdc3bea4a727a54a6f5f9b66f6d75
--- /dev/null
+++ b/Source/core/events/RelatedEvent.h
@@ -0,0 +1,49 @@
+// 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 RelatedEvent_h
+#define RelatedEvent_h
+
+#include "core/events/Event.h"
+
+namespace WebCore {

[Inactive, 2014/07/23 14:19:07]

s/WebCore/blink

[pals, 2014/07/24 10:49:25]

Done.

+
+struct RelatedEventInit : public EventInit {
+    RelatedEventInit();
+    RefPtr<EventTarget> relatedTarget;

[Inactive, 2014/07/23 14:19:07]

oilpan: RefPtrWillBeMember

[pals, 2014/07/24 10:49:25]

Done.

+};
+
+class RelatedEvent FINAL : public Event {
+public:
+    static PassRefPtr<RelatedEvent> create()

[Inactive, 2014/07/23 14:19:07]

Oilpan: PassRefPtrWillBeRawPtr

[pals, 2014/07/24 10:49:25]

Done.

+    {
+        return adoptRef(new RelatedEvent);
+    }
+
+    static PassRefPtr<RelatedEvent> create(const AtomicString& eventType);

[Inactive, 2014/07/23 14:19:07]

ditto

[pals, 2014/07/24 10:49:25]

Done.

+    static PassRefPtr<RelatedEvent> create(const AtomicString& eventType, const RelatedEventInit&);

[Inactive, 2014/07/23 14:19:07]

ditto

[pals, 2014/07/24 10:49:25]

Done.

+
+    virtual ~RelatedEvent();
+
+    EventTarget* relatedTarget() const { return m_relatedTarget.get(); }
+    void setRelatedTarget(PassRefPtr<EventTarget> relatedTarget) { m_relatedTarget = relatedTarget; }

[Inactive, 2014/07/23 14:19:07]

oilpan: PassRefPtrWillBeRawPtr<EventTarget>

[pals, 2014/07/24 10:49:25]

Done.

+
+
+    virtual const AtomicString& interfaceName() const OVERRIDE { return EventNames::RelatedEvent; }
+    virtual bool isRelatedEvent() const OVERRIDE { return true; }
+
+protected:
+    RelatedEvent();
+    explicit RelatedEvent(const AtomicString& type);
+    RelatedEvent(const AtomicString& type, const RelatedEventInit&);
+
+private:
+    RefPtr<EventTarget> m_relatedTarget;

[Inactive, 2014/07/23 14:19:07]

oilpan: RefPtrWillBeMember<EventTarget>

[pals, 2014/07/24 10:49:25]

Done.

+};
+
+DEFINE_EVENT_TYPE_CASTS(RelatedEvent);
+
+} // namespace WebCore

[Inactive, 2014/07/23 14:19:07]

blink

[pals, 2014/07/24 10:49:25]

Done.

+
+#endif // RelatedEvent_h