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

Source/WebCore/platform/win/HWndDC.h

-/*
- * Copyright (C) 2012 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 COMPUTER, 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 COMPUTER, 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 HWndDC_h
-#define HWndDC_h
-
-#include <windows.h>
-#include <wtf/NonCopyable.h>
-
-namespace WebCore {
-
-class HWndDC {
-    WTF_MAKE_NONCOPYABLE(HWndDC);
-public:
-    HWndDC()
-        : m_hwnd(0)
-        , m_hdc(0)
-    {
-    }
-
-    explicit HWndDC(HWND hwnd)
-        : m_hwnd(hwnd)
-        , m_hdc(::GetDC(hwnd))
-    {
-    }
-
-    HWndDC(HWND hwnd, HRGN hrgnClip, DWORD flags)
-        : m_hwnd(hwnd)
-        , m_hdc(::GetDCEx(hwnd, hrgnClip, flags))
-    {
-    }
-
-    ~HWndDC()
-    {
-        clear();
-    }
-
-    HDC setHWnd(HWND hwnd)
-    {
-        clear();
-        m_hwnd = hwnd;
-        m_hdc = ::GetDC(hwnd);
-        return m_hdc;
-    }
-
-    void clear()
-    {
-        if (!m_hdc)
-            return;
-        ::ReleaseDC(m_hwnd, m_hdc);
-        m_hwnd = 0;
-        m_hdc = 0;
-    }
-
-    operator HDC()
-    {
-        return m_hdc;
-    }
-
-private:
-    HWND m_hwnd;
-    HDC m_hdc;
-};
-
-} // namespace WebCore
-
-#endif // HWndDC_h