Gamepad API: add support for gamepadconnected and gamepaddisconnected events

Source/modules/gamepad/GamepadEvent.cpp

+// 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.
+
+#include "config.h"
+#include "modules/gamepad/GamepadEvent.h"
+
+#include "core/events/ThreadLocalEventNames.h"
+
+namespace WebCore {
+
+GamepadEventInit::GamepadEventInit()
+{
+}
+
+GamepadEvent::GamepadEvent()
+{
+    ScriptWrappable::init(this);
+}
+
+GamepadEvent::GamepadEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<Gamepad> gamepad)
+    : Event(type, canBubble, cancelable)
+    , m_gamepad(gamepad)
+{
+    ScriptWrappable::init(this);
+}
+
+GamepadEvent::GamepadEvent(const AtomicString& type, const GamepadEventInit& initializer)
+    : Event(type, initializer)
+    , m_gamepad(initializer.gamepad)
+{
+    ScriptWrappable::init(this);
+}
+
+GamepadEvent::~GamepadEvent()
+{
+}
+
+const AtomicString& GamepadEvent::interfaceName() const
+{
+    return EventNames::GamepadEvent;
+}
+
+void GamepadEvent::trace(Visitor* visitor)
+{
+    Event::trace(visitor);
+}
+
+} // namespace WebCore