Move Resource subclasses out of fetch/

Source/core/fetch/StyleSheetResourceClient.h

-/*
- Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
- Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
- Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
- Copyright (C) 2011 Google 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 StyleSheetResourceClient_h
-#define StyleSheetResourceClient_h
-
-#include "core/fetch/ResourceClient.h"
-#include "platform/weborigin/KURL.h"
-#include "wtf/Forward.h"
-
-namespace blink {
-class CSSStyleSheetResource;
-
-class StyleSheetResourceClient : public ResourceClient {
-public:
-    virtual ~StyleSheetResourceClient() { }
-    static ResourceClientType expectedType() { return StyleSheetType; }
-    virtual ResourceClientType resourceClientType() const override final { return expectedType(); }
-    virtual void setCSSStyleSheet(const String& /* href */, const KURL& /* baseURL */, const String& /* charset */, const CSSStyleSheetResource*) { }
-    virtual void setXSLStyleSheet(const String& /* href */, const KURL& /* baseURL */, const String& /* sheet */) { }
-};
-
-}
-
-#endif // StyleSheetResourceClient_h