Rework the SVGPathConsumer interface

Source/core/svg/SVGPathTraversalStateBuilder.h

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * 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 SVGPathTraversalStateBuilder_h
 #define SVGPathTraversalStateBuilder_h
 
 #include "core/svg/SVGPathConsumer.h"
 #include "platform/graphics/PathTraversalState.h"
 
 namespace blink {
 
+class FloatPoint;
+
 class SVGPathTraversalStateBuilder final : public SVGPathConsumer {
 public:
     SVGPathTraversalStateBuilder(PathTraversalState::PathTraversalAction, float desiredLength = 0);
 
     unsigned pathSegmentIndex() const { return m_segmentIndex; }
     float totalLength();
     FloatPoint currentPoint();
 
     virtual void incrementPathSegmentCount() override;
     virtual bool continueConsuming() override;
 
 private:
-    // Used in UnalteredParsing/NormalizedParsing modes.
-    virtual void moveTo(const FloatPoint&, PathCoordinateMode) override;
-    virtual void lineTo(const FloatPoint&, PathCoordinateMode) override;
-    virtual void curveToCubic(const FloatPoint&, const FloatPoint&, const FloatPoint&, PathCoordinateMode) override;
-    virtual void closePath() override;
-
-private:
-    // Not used for PathTraversalState.
-    virtual void lineToHorizontal(float, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
-    virtual void lineToVertical(float, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
-    virtual void curveToCubicSmooth(const FloatPoint&, const FloatPoint&, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
-    virtual void curveToQuadratic(const FloatPoint&, const FloatPoint&, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
-    virtual void curveToQuadraticSmooth(const FloatPoint&, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
-    virtual void arcTo(float, float, float, bool, bool, const FloatPoint&, PathCoordinateMode) override { ASSERT_NOT_REACHED(); }
+    virtual void emitSegment(const PathSegmentData&) override;
 
     PathTraversalState m_traversalState;
     unsigned m_segmentIndex;
 };
 
 } // namespace blink
 
 #endif // SVGPathTraversalStateBuilder_h