core/svg: Include wtf files using "wtf/foo.h" form.

Source/core/svg/SVGLangSpace.h

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  *
  * 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.
  */
 
 #ifndef SVGLangSpace_h
 #define SVGLangSpace_h
 
 #include "core/dom/QualifiedName.h"
-#include <wtf/HashSet.h>
+#include "wtf/HashSet.h"
 
 namespace WebCore {
 
 class Attribute;
 
 class SVGLangSpace {
 public:
     const AtomicString& xmllang() const { return m_lang; }
     void setXmllang(const AtomicString& xmlLang);
 
     const AtomicString& xmlspace() const;
     void setXmlspace(const AtomicString& xmlSpace);
 
     bool parseAttribute(const QualifiedName&, const AtomicString&);
     bool isKnownAttribute(const QualifiedName&);
     void addSupportedAttributes(HashSet<QualifiedName>&);
 
 private:
     AtomicString m_lang;
     AtomicString m_space;
 };
 
 } // namespace WebCore
 
 #endif // SVGLangSpace_h