Rework the SVGPathSource interface

Source/core/svg/SVGPathByteStreamSource.h

Index: Source/core/svg/SVGPathByteStreamSource.h
diff --git a/Source/core/svg/SVGPathByteStreamSource.h b/Source/core/svg/SVGPathByteStreamSource.h
index d29dfdb5103320dae52d73cbdb7755f2d7c8de5f..ba64a73dafe39c4d5eb6b0685c0d12a94615c9b9 100644
--- a/Source/core/svg/SVGPathByteStreamSource.h
+++ b/Source/core/svg/SVGPathByteStreamSource.h
@@ -36,19 +36,8 @@ public:
 
 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)