Factor out GamepadCommon base class from Gamepad and WebKitGamepad

Source/modules/gamepad/GamepadCommon.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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  * DAMAGE.
  */
 
-#ifndef Gamepad_h
-#define Gamepad_h
+#ifndef GamepadCommon_h
+#define GamepadCommon_h
 
-#include "bindings/v8/ScriptWrappable.h"
-#include "heap/Handle.h"
-#include "modules/gamepad/GamepadButton.h"
 #include "public/platform/WebGamepad.h"
-#include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-class Gamepad FINAL : public RefCountedWillBeGarbageCollectedFinalized<Gamepad>, public ScriptWrappable {
+class GamepadCommon {
 public:
-    static PassRefPtrWillBeRawPtr<Gamepad> create()
-    {
-        return adoptRefWillBeNoop(new Gamepad);
-    }
-    ~Gamepad();
-
+    GamepadCommon();
+    ~GamepadCommon();
     typedef Vector<float> FloatVector;
 
     const String& id() const { return m_id; }
     void setId(const String& id) { m_id = id; }
 
     unsigned index() const { return m_index; }
     void setIndex(unsigned val) { m_index = val; }
 
     bool connected() const { return m_connected; }
     void setConnected(bool val) { m_connected = val; }
 
     unsigned long long timestamp() const { return m_timestamp; }
     void setTimestamp(unsigned long long val) { m_timestamp = val; }
 
     const String& mapping() const { return m_mapping; }
     void setMapping(const String& val) { m_mapping = val; }
 
     const FloatVector& axes() const { return m_axes; }
     void setAxes(unsigned count, const float* data);
 
-    const GamepadButtonVector& buttons() const { return m_buttons; }
-    void setButtons(unsigned count, const blink::WebGamepadButton* data);
-
-    void trace(Visitor*);
-
-private:
-    Gamepad();
+protected:
     String m_id;
     unsigned m_index;
     bool m_connected;
     unsigned long long m_timestamp;
     String m_mapping;
     FloatVector m_axes;
-    GamepadButtonVector m_buttons;
 };
 
 } // namespace WebCore
 
-#endif // Gamepad_h
+#endif // GamepadCommon_h