Remove GDI font rendering code for windows

Source/platform/fonts/win/FontCustomPlatformDataWin.cpp

-/*
- * Copyright (C) 2013 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:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
- * OWNER 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.
- */
-
-#include "config.h"
-#include "platform/fonts/FontCustomPlatformData.h"
-
-#include "platform/LayoutTestSupport.h"
-#include "platform/SharedBuffer.h"
-#include "platform/fonts/FontPlatformData.h"
-#include "platform/fonts/opentype/OpenTypeSanitizer.h"
-#include "platform/fonts/opentype/OpenTypeUtilities.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/RefPtr.h"
-#include "wtf/text/Base64.h"
-
-#include <objbase.h>
-
-namespace {
-
-// Creates a unique and unpredictable font name, in order to avoid collisions and to
-// not allow access from CSS.
-String createUniqueFontName()
-{
-    GUID fontUuid;
-    CoCreateGuid(&fontUuid);
-
-    String fontName = base64Encode(reinterpret_cast<char*>(&fontUuid), sizeof(fontUuid));
-    ASSERT(fontName.length() < LF_FACESIZE);
-    return fontName;
-}
-
-} // namespace
-
-namespace WebCore {
-
-FontCustomPlatformData::FontCustomPlatformData(HANDLE fontReference, const String& name)
-    : m_fontReference(fontReference)
-    , m_name(name)
-{
-}
-
-FontCustomPlatformData::~FontCustomPlatformData()
-{
-    if (m_fontReference)
-        RemoveFontMemResourceEx(m_fontReference);
-}
-
-FontPlatformData FontCustomPlatformData::fontPlatformData(float size, bool bold, bool italic, FontOrientation orientation, FontWidthVariant)
-{
-    ASSERT(m_fontReference);
-
-    LOGFONT logFont;
-    // m_name comes from createUniqueFontName, which, in turn, gets
-    // it from base64-encoded uuid (128-bit). So, m_name
-    // can never be longer than LF_FACESIZE (32).
-    if (m_name.length() + 1 >= LF_FACESIZE) {
-        ASSERT_NOT_REACHED();
-        return FontPlatformData();
-    }
-    unsigned len = m_name.copyTo(logFont.lfFaceName, 0, LF_FACESIZE - 1);
-    logFont.lfFaceName[len] = '\0';
-
-    // FIXME: almost identical to FillLogFont in FontCacheWin.cpp.
-    // Need to refactor.
-    logFont.lfHeight = -static_cast<int>(size);
-    logFont.lfWidth = 0;
-    logFont.lfEscapement = 0;
-    logFont.lfOrientation = 0;
-    logFont.lfUnderline = false;
-    logFont.lfStrikeOut = false;
-    logFont.lfCharSet = DEFAULT_CHARSET;
-    logFont.lfOutPrecision = OUT_TT_ONLY_PRECIS;
-    logFont.lfQuality = isRunningLayoutTest() ? NONANTIALIASED_QUALITY : DEFAULT_QUALITY; // Honor user's desktop settings.
-    logFont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
-    logFont.lfItalic = italic;
-    logFont.lfWeight = bold ? FW_BOLD : FW_DONTCARE;
-
-    HFONT hfont = CreateFontIndirect(&logFont);
-    return FontPlatformData(hfont, size, orientation);
-}
-
-PassOwnPtr<FontCustomPlatformData> FontCustomPlatformData::create(SharedBuffer* buffer)
-{
-    ASSERT_ARG(buffer, buffer);
-
-    OpenTypeSanitizer sanitizer(buffer);
-    RefPtr<SharedBuffer> transcodeBuffer = sanitizer.sanitize();
-    if (!transcodeBuffer)
-        return nullptr; // validation failed.
-    buffer = transcodeBuffer.get();
-
-    // Introduce the font to GDI. AddFontMemResourceEx should be used with care, because it will pollute the process's
-    // font namespace (Windows has no API for creating an HFONT from data without exposing the font to the
-    // entire process first).
-    String fontName = createUniqueFontName();
-    HANDLE fontReference = renameAndActivateFont(buffer, fontName);
-    if (!fontReference)
-        return nullptr;
-
-    return adoptPtr(new FontCustomPlatformData(fontReference, fontName));
-}
-
-bool FontCustomPlatformData::supportsFormat(const String& format)
-{
-    return equalIgnoringCase(format, "truetype") || equalIgnoringCase(format, "opentype") || OpenTypeSanitizer::supportsFormat(format);
-}
-
-} // namespace WebCore