[Presentation API] Added the DefaultPresentationStart event and parsing of the default presentation…

Source/modules/presentation/DefaultPresentationStartEvent.cpp

+// Copyright 2015 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.
+
+#include "config.h"
+#include "modules/presentation/DefaultPresentationStartEvent.h"
+
+namespace blink {
+
+DefaultPresentationStartEvent::~DefaultPresentationStartEvent()
+{
+}
+
+DefaultPresentationStartEvent::DefaultPresentationStartEvent()
+{
+}
+
+DefaultPresentationStartEvent::DefaultPresentationStartEvent(const AtomicString& eventType, PresentationSession* session)
+    : Event(eventType, false, false)

[Peter Beverloo, 2015/03/03 21:33:02]

Perhaps you want to clarify these argument values;

    : Event(eventType, false /* canBubble */, false /* cancelable */)

[whywhat, 2015/03/05 18:41:46]

Done.

+    , m_session(session)
+{
+}
+
+DefaultPresentationStartEvent::DefaultPresentationStartEvent(const AtomicString& eventType, const DefaultPresentationStartEventInit& initializer)
+    : Event(eventType, initializer)
+    , m_session(initializer.session())
+{
+}
+
+const AtomicString& DefaultPresentationStartEvent::interfaceName() const
+{
+    return EventNames::DefaultPresentationStartEvent;
+}
+
+} // namespace blink