Allow SVGPathStringSource to be allocated on the stack

Source/core/svg/SVGPathStringSource.h

Index: Source/core/svg/SVGPathStringSource.h
diff --git a/Source/core/svg/SVGPathStringSource.h b/Source/core/svg/SVGPathStringSource.h
index ec8dba7490ef47d0372c728f98d56aaf297a2a2e..5b918206c95c28942dbaee09d1193cc5c0bf632b 100644
--- a/Source/core/svg/SVGPathStringSource.h
+++ b/Source/core/svg/SVGPathStringSource.h
@@ -29,14 +29,9 @@ namespace blink {
 
 class SVGPathStringSource final : public SVGPathSource {
 public:
-    static PassOwnPtrWillBeRawPtr<SVGPathStringSource> create(const String& string)
-    {
-        return adoptPtrWillBeNoop(new SVGPathStringSource(string));
-    }
-
-private:
     explicit SVGPathStringSource(const String&);
 
+private:
     virtual bool hasMoreData() const override;
     virtual bool moveToNextToken() override;
     virtual bool parseSVGSegmentType(SVGPathSegType&) override;