Remove Blink-WebKit-only document.createEvent strings

third_party/WebKit/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 "modules/gamepad/GamepadEvent.h"
 
 namespace blink {
 
-GamepadEvent::GamepadEvent()
-{
-}
-
 GamepadEvent::GamepadEvent(const AtomicString& type, bool canBubble, bool cancelable, Gamepad* gamepad)
     : Event(type, canBubble, cancelable)
     , m_gamepad(gamepad)
 {
 }
 
 GamepadEvent::GamepadEvent(const AtomicString& type, const GamepadEventInit& initializer)
     : Event(type, initializer)
 {
     if (initializer.hasGamepad())
         m_gamepad = initializer.gamepad();
 }
 
 GamepadEvent::~GamepadEvent()
 {
 }
 
 const AtomicString& GamepadEvent::interfaceName() const
 {
     return EventNames::GamepadEvent;
 }
 
 DEFINE_TRACE(GamepadEvent)
 {
     visitor->trace(m_gamepad);
     Event::trace(visitor);
 }
 
 } // namespace blink