Drop special-case handling of zero-length subpaths

Source/core/layout/svg/SVGSubpathData.h

Index: Source/core/layout/svg/SVGSubpathData.h
diff --git a/Source/core/layout/svg/SVGSubpathData.h b/Source/core/layout/svg/SVGSubpathData.h
deleted file mode 100644
index 85a670888edbb3e4906a22bbbdf6409925d5eac4..0000000000000000000000000000000000000000
--- a/Source/core/layout/svg/SVGSubpathData.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2012 Google, Inc.
- *
- * 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 SVGSubpathData_h
-#define SVGSubpathData_h
-
-#include "platform/graphics/Path.h"
-#include "wtf/Allocator.h"
-#include "wtf/Vector.h"
-
-namespace blink {
-
-class SVGSubpathData {
-    STACK_ALLOCATED();
-public:
-    SVGSubpathData(Vector<FloatPoint>& zeroLengthSubpathLocations)
-        : m_zeroLengthSubpathLocations(zeroLengthSubpathLocations)
-        , m_haveSeenMoveOnly(true)
-        , m_pathIsZeroLength(true)
-    {
-        m_lastPoint.set(0, 0);
-        m_movePoint.set(0, 0);
-    }
-
-    static void updateFromPathElement(void* info, const PathElement* element)
-    {
-        SVGSubpathData* subpathFinder = static_cast<SVGSubpathData*>(info);
-        switch (element->type) {
-        case PathElementMoveToPoint:
-            if (subpathFinder->m_pathIsZeroLength && !subpathFinder->m_haveSeenMoveOnly)
-                subpathFinder->m_zeroLengthSubpathLocations.append(subpathFinder->m_lastPoint);
-            subpathFinder->m_lastPoint = subpathFinder->m_movePoint = element->points[0];
-            subpathFinder->m_haveSeenMoveOnly = true;
-            subpathFinder->m_pathIsZeroLength = true;
-            break;
-        case PathElementAddLineToPoint:
-            if (subpathFinder->m_lastPoint != element->points[0]) {
-                subpathFinder->m_pathIsZeroLength = false;
-                subpathFinder->m_lastPoint = element->points[0];
-            }
-            subpathFinder->m_haveSeenMoveOnly = false;
-            break;
-        case PathElementAddQuadCurveToPoint:
-            if (subpathFinder->m_lastPoint != element->points[0] || element->points[0] != element->points[1]) {
-                subpathFinder->m_pathIsZeroLength = false;
-                subpathFinder->m_lastPoint = element->points[1];
-            }
-            subpathFinder->m_haveSeenMoveOnly = false;
-            break;
-        case PathElementAddCurveToPoint:
-            if (subpathFinder->m_lastPoint != element->points[0] || element->points[0] != element->points[1] || element->points[1] != element->points[2]) {
-                subpathFinder->m_pathIsZeroLength = false;
-                subpathFinder->m_lastPoint = element->points[2];
-            }
-            subpathFinder->m_haveSeenMoveOnly = false;
-            break;
-        case PathElementCloseSubpath:
-            if (subpathFinder->m_pathIsZeroLength)
-                subpathFinder->m_zeroLengthSubpathLocations.append(subpathFinder->m_lastPoint);
-            subpathFinder->m_haveSeenMoveOnly = true; // This is an implicit move for the next element
-            subpathFinder->m_pathIsZeroLength = true; // A new sub-path also starts here
-            subpathFinder->m_lastPoint = subpathFinder->m_movePoint;
-            break;
-        }
-    }
-
-    void pathIsDone()
-    {
-        if (m_pathIsZeroLength && !m_haveSeenMoveOnly)
-            m_zeroLengthSubpathLocations.append(m_lastPoint);
-    }
-
-private:
-    Vector<FloatPoint>& m_zeroLengthSubpathLocations;
-    FloatPoint m_lastPoint;
-    FloatPoint m_movePoint;
-    bool m_haveSeenMoveOnly;
-    bool m_pathIsZeroLength;
-};
-
-}
-
-#endif // SVGSubpathData_h