Rework the SVGPathSource interface

Source/core/svg/SVGPathByteStreamSource.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
@@ skipping 18 matching lines @@
 class SVGPathByteStreamSource final : public SVGPathSource {
 public:
     explicit SVGPathByteStreamSource(const SVGPathByteStream& stream)
         : m_streamCurrent(stream.begin())
         , m_streamEnd(stream.end())
     {
     }
 
 private:
     virtual bool hasMoreData() const override;
-    virtual bool moveToNextToken() override { return true; }
-    virtual bool parseSVGSegmentType(SVGPathSegType&) override;
-    virtual SVGPathSegType nextCommand(SVGPathSegType) override;
-
-    virtual bool parseMoveToSegment(FloatPoint&) override;
-    virtual bool parseLineToSegment(FloatPoint&) override;
-    virtual bool parseLineToHorizontalSegment(float&) override;
-    virtual bool parseLineToVerticalSegment(float&) override;
-    virtual bool parseCurveToCubicSegment(FloatPoint&, FloatPoint&, FloatPoint&) override;
-    virtual bool parseCurveToCubicSmoothSegment(FloatPoint&, FloatPoint&) override;
-    virtual bool parseCurveToQuadraticSegment(FloatPoint&, FloatPoint&) override;
-    virtual bool parseCurveToQuadraticSmoothSegment(FloatPoint&) override;
-    virtual bool parseArcToSegment(float&, float&, float&, bool&, bool&, FloatPoint&) override;
+    virtual SVGPathSegType peekSegmentType() override;
+    virtual PathSegmentData parseSegment() override;
 
 #if COMPILER(MSVC)
 #pragma warning(disable: 4701)
 #endif
     template<typename DataType>
     DataType readType()
     {
         ByteType<DataType> data;
         size_t typeSize = sizeof(ByteType<DataType>);
         ASSERT(m_streamCurrent + typeSize <= m_streamEnd);
@@ skipping 12 matching lines @@
         return FloatPoint(x, y);
     }
 
     SVGPathByteStream::DataIterator m_streamCurrent;
     SVGPathByteStream::DataIterator m_streamEnd;
 };
 
 } // namespace blink
 
 #endif // SVGPathByteStreamSource_h