Allow SVGPathStringSource to be allocated on the stack

Source/core/svg/SVGPathStringSource.h

 /*
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2013 Apple Inc. 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,
@@ skipping 11 matching lines @@
 #define SVGPathStringSource_h
 
 #include "core/svg/SVGPathSource.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class SVGPathStringSource final : public SVGPathSource {
 public:
-    static PassOwnPtrWillBeRawPtr<SVGPathStringSource> create(const String& string)
-    {
-        return adoptPtrWillBeNoop(new SVGPathStringSource(string));
-    }
+    explicit SVGPathStringSource(const String&);
 
 private:
-    explicit SVGPathStringSource(const String&);
-
     virtual bool hasMoreData() const override;
     virtual bool moveToNextToken() override;
     virtual bool parseSVGSegmentType(SVGPathSegType&) override;
     virtual SVGPathSegType nextCommand(SVGPathSegType previousCommand) 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;
@@ skipping 11 matching lines @@
     } m_current;
     union {
         const LChar* m_character8;
         const UChar* m_character16;
     } m_end;
 };
 
 } // namespace blink
 
 #endif // SVGPathStringSource_h