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

Source/WebCore/platform/win/DefWndProcWindowClass.cpp

-/*
- * Copyright (C) 2011 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. 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.
- */
-
-#include "config.h"
-#include "DefWndProcWindowClass.h"
-
-#include "WebCoreInstanceHandle.h"
-#include <windows.h>
-
-namespace WebCore {
-
-static const wchar_t className[] = L"DefWndProcWindowClass";
-
-static ATOM registerClass()
-{
-    WNDCLASSW wndClass = {0};
-    wndClass.lpszClassName = className;
-    wndClass.lpfnWndProc = ::DefWindowProcW;
-    wndClass.hInstance = instanceHandle();
-
-    return ::RegisterClassW(&wndClass);
-}
-
-const wchar_t* defWndProcWindowClassName()
-{
-    static ATOM atom = registerClass();
-    return className;
-}
-
-} // namespace WebCore