Include wtf/RefCounted.h less often in modules/

Source/modules/gamepad/Gamepad.h

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
  */
 
 #ifndef Gamepad_h
 #define Gamepad_h
 
 #include "bindings/v8/ScriptWrappable.h"
 #include "modules/gamepad/GamepadButton.h"
 #include "modules/gamepad/GamepadCommon.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebGamepad.h"
-#include "wtf/RefCounted.h"
 
 namespace WebCore {
 
 class Gamepad FINAL : public GarbageCollectedFinalized<Gamepad>, public GamepadCommon, public ScriptWrappable {
 public:
     static Gamepad* create()
     {
         return new Gamepad;
     }
     ~Gamepad();
 
     const GamepadButtonVector& buttons() const { return m_buttons; }
     void setButtons(unsigned count, const blink::WebGamepadButton* data);
 
     void trace(Visitor*);
 
 private:
     Gamepad();
     GamepadButtonVector m_buttons;
 };
 
 } // namespace WebCore
 
 #endif // Gamepad_h