Move Resource subclasses out of fetch/

Source/core/fetch/XSLStyleSheetResource.h

-/*
-    Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
-    Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
-    Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
-    Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
-
-    This library is free software; you can redistribute it and/or
-    modify it under the terms of the GNU Library General Public
-    License as published by the Free Software Foundation; either
-    version 2 of the License, or (at your option) any later version.
-
-    This library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-    Library General Public License for more details.
-
-    You should have received a copy of the GNU Library General Public License
-    along with this library; see the file COPYING.LIB.  If not, write to
-    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-    Boston, MA 02110-1301, USA.
-
-    This class provides all functionality needed for loading images, style sheets and html
-    pages from the web. It has a memory cache for these objects.
-*/
-
-#ifndef XSLStyleSheetResource_h
-#define XSLStyleSheetResource_h
-
-#include "core/fetch/ResourcePtr.h"
-#include "core/fetch/StyleSheetResource.h"
-
-namespace blink {
-
-class FetchRequest;
-class ResourceFetcher;
-
-class XSLStyleSheetResource final : public StyleSheetResource {
-public:
-    static ResourcePtr<XSLStyleSheetResource> fetch(FetchRequest&, ResourceFetcher*);
-
-    const String& sheet() const { return m_sheet; }
-
-    virtual void didAddClient(ResourceClient*) override;
-
-protected:
-    class XSLStyleSheetResourceFactory : public ResourceFactory {
-    public:
-        XSLStyleSheetResourceFactory()
-            : ResourceFactory(Resource::XSLStyleSheet) { }
-
-        Resource* create(const ResourceRequest& request, const String& charset) const override
-        {
-            return new XSLStyleSheetResource(request, charset);
-        }
-    };
-    XSLStyleSheetResource(const ResourceRequest&, const String& charset);
-
-    virtual void checkNotify() override;
-
-    String m_sheet;
-};
-
-DEFINE_RESOURCE_TYPE_CASTS(XSLStyleSheet);
-
-} // namespace blink
-
-#endif