Remove support for loading remote font faces

sky/engine/core/css/CSSFontFaceSrcValue.cpp

-/*
- * Copyright (C) 2007, 2010 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 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.
- */
-
-#include "sky/engine/core/css/CSSFontFaceSrcValue.h"
-
-#include "gen/sky/core/FetchInitiatorTypeNames.h"
-#include "sky/engine/core/css/StyleSheetContents.h"
-#include "sky/engine/core/dom/Document.h"
-#include "sky/engine/core/dom/Node.h"
-#include "sky/engine/core/fetch/FetchRequest.h"
-#include "sky/engine/core/fetch/FontResource.h"
-#include "sky/engine/core/fetch/ResourceFetcher.h"
-#include "sky/engine/platform/fonts/FontCache.h"
-#include "sky/engine/platform/fonts/FontCustomPlatformData.h"
-#include "sky/engine/wtf/text/StringBuilder.h"
-
-namespace blink {
-
-bool CSSFontFaceSrcValue::isSupportedFormat() const
-{
-    // Normally we would just check the format, but in order to avoid conflicts with the old WinIE style of font-face,
-    // we will also check to see if the URL ends with .eot.  If so, we'll go ahead and assume that we shouldn't load it.
-    if (m_format.isEmpty()) {
-        // Check for .eot.
-        if (!m_resource.startsWith("data:", false) && m_resource.endsWith(".eot", false))
-            return false;
-        return true;
-    }
-
-    if (FontCustomPlatformData::supportsFormat(m_format))
-        return true;
-
-    // We have removed SVG font support on non-gdi platforms. For details, see:
-    // https://groups.google.com/a/chromium.org/d/msg/blink-dev/pYbbUcYvlYY/LQvFvM8KZZEJ
-    return false;
-}
-
-String CSSFontFaceSrcValue::customCSSText() const
-{
-    StringBuilder result;
-    if (isLocal())
-        result.appendLiteral("local(");
-    else
-        result.appendLiteral("url(");
-    result.append(m_resource);
-    result.append(')');
-    if (!m_format.isEmpty()) {
-        result.appendLiteral(" format(");
-        result.append(m_format);
-        result.append(')');
-    }
-    return result.toString();
-}
-
-FontResource* CSSFontFaceSrcValue::fetch(Document* document)
-{
-    if (!m_fetched) {
-        FetchRequest request(ResourceRequest(document->completeURL(m_resource)), FetchInitiatorTypeNames::css);
-        request.mutableResourceRequest().setHTTPReferrer(m_referrer);
-        m_fetched = document->fetcher()->fetchFont(request);
-    } else {
-        // FIXME: CSSFontFaceSrcValue::fetch is invoked when @font-face rule
-        // is processed by StyleResolver / StyleEngine.
-        restoreCachedResourceIfNeeded(document);
-    }
-    return m_fetched.get();
-}
-
-void CSSFontFaceSrcValue::restoreCachedResourceIfNeeded(Document* document)
-{
-    ASSERT(m_fetched);
-    ASSERT(document && document->fetcher());
-
-    const String resourceURL = document->completeURL(m_resource);
-    if (document->fetcher()->cachedResource(KURL(ParsedURLString, resourceURL)))
-        return;
-
-    FetchRequest request(ResourceRequest(resourceURL), FetchInitiatorTypeNames::css);
-    document->fetcher()->requestLoadStarted(m_fetched.get(), request, ResourceFetcher::ResourceLoadingFromCache);
-}
-
-bool CSSFontFaceSrcValue::equals(const CSSFontFaceSrcValue& other) const
-{
-    return m_isLocal == other.m_isLocal && m_format == other.m_format && m_resource == other.m_resource;
-}
-
-}