Add StylePath and use it to store 'd' in ComputedStyle

third_party/WebKit/Source/core/svg/SVGPathByteStream.h

 /*
  * Copyright (C) Research In Motion Limited 2010. 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.
  */
 
 #ifndef SVGPathByteStream_h
 #define SVGPathByteStream_h
 
 #include "wtf/Noncopyable.h"
-#include "wtf/PassOwnPtr.h"
+#include "wtf/PassRefPtr.h"
+#include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 template<typename DataType>
 union ByteType {
     DataType value;
     unsigned char bytes[sizeof(DataType)];
 };
 
-class SVGPathByteStream {
+class SVGPathByteStream : public RefCounted<SVGPathByteStream> {
     USING_FAST_MALLOC(SVGPathByteStream);
 public:
-    static PassOwnPtr<SVGPathByteStream> create()
+    static PassRefPtr<SVGPathByteStream> create()
     {
-        return adoptPtr(new SVGPathByteStream);
+        return adoptRef(new SVGPathByteStream);
     }
 
-    PassOwnPtr<SVGPathByteStream> copy() const
+    PassRefPtr<SVGPathByteStream> clone() const
     {
-        return adoptPtr(new SVGPathByteStream(m_data));
+        return adoptRef(new SVGPathByteStream(m_data));
     }
 
     typedef Vector<unsigned char> Data;
     typedef Data::const_iterator DataIterator;
 
     DataIterator begin() const { return m_data.begin(); }
     DataIterator end() const { return m_data.end(); }
     void append(const unsigned char* data, size_t dataSize) { m_data.append(data, dataSize); }
     void clear() { m_data.clear(); }
     void reserveInitialCapacity(size_t size) { m_data.reserveInitialCapacity(size); }
     void shrinkToFit() { m_data.shrinkToFit(); }
     bool isEmpty() const { return m_data.isEmpty(); }
     unsigned size() const { return m_data.size(); }
 
     bool operator==(const SVGPathByteStream& other) const { return m_data == other.m_data; }
 
 private:
     SVGPathByteStream() { }
     SVGPathByteStream(const Data& data)
         : m_data(data)
     {
     }
 
     Data m_data;
 };
 
 } // namespace blink
 
 #endif // SVGPathByteStream_h