WebCore: Remove PLATFORM(WIN) files we do not use.

Source/WebCore/platform/win/ScrollbarThemeWin.h

-/*
- * Copyright (C) 2008 Apple 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. ``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
- * 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 ScrollbarThemeWin_h
-#define ScrollbarThemeWin_h
-
-#include "ScrollbarThemeComposite.h"
-
-namespace WebCore {
-
-class ScrollbarThemeWin : public ScrollbarThemeComposite {
-public:
-    ScrollbarThemeWin();
-    virtual ~ScrollbarThemeWin();
-
-    virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar);
-
-    virtual void themeChanged();
-    
-    virtual bool invalidateOnMouseEnterExit();
-
-protected:
-    virtual bool hasButtons(ScrollbarThemeClient*) { return true; }
-    virtual bool hasThumb(ScrollbarThemeClient*);
-
-    virtual IntRect backButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool painting = false);
-    virtual IntRect forwardButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool painting = false);
-    virtual IntRect trackRect(ScrollbarThemeClient*, bool painting = false);
-
-    virtual bool shouldCenterOnThumb(ScrollbarThemeClient*, const PlatformMouseEvent&);
-    virtual bool shouldSnapBackToDragOrigin(ScrollbarThemeClient*, const PlatformMouseEvent&);
-
-    virtual void paintTrackBackground(GraphicsContext*, ScrollbarThemeClient*, const IntRect&);
-    virtual void paintTrackPiece(GraphicsContext*, ScrollbarThemeClient*, const IntRect&, ScrollbarPart);
-    virtual void paintButton(GraphicsContext*, ScrollbarThemeClient*, const IntRect&, ScrollbarPart);
-    virtual void paintThumb(GraphicsContext*, ScrollbarThemeClient*, const IntRect&);
-};
-
-}
-#endif