Expose the SVG path normalizer in SVGPathParser.h

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

 /*
  * Copyright (C) 2002, 2003 The Karbon Developers
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
  * 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
@@ skipping 52 matching lines @@
 
 private:
     bool initialCommandIsMoveTo();
     bool parsePath();
     bool parseAndNormalizePath();
 
     SVGPathSource* m_source;
     SVGPathConsumer* m_consumer;
 };
 
+class SVGPathNormalizer {
+    STACK_ALLOCATED();
+public:
+    SVGPathNormalizer(SVGPathConsumer* consumer)
+        : m_consumer(consumer)
+        , m_lastCommand(PathSegUnknown)
+    {
+        ASSERT(m_consumer);
+    }
+
+    void emitSegment(const PathSegmentData&);
+
+private:
+    bool decomposeArcToCubic(const FloatPoint& currentPoint, const PathSegmentData&);
+
+    SVGPathConsumer* m_consumer;
+    FloatPoint m_controlPoint;
+    FloatPoint m_currentPoint;
+    FloatPoint m_subPathPoint;
+    SVGPathSegType m_lastCommand;
+};
+
 } // namespace blink
 
 #endif // SVGPathParser_h