Introduce createMarkup function takes two positions

Source/core/editing/markup.h

 /*
  * Copyright (C) 2004 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 46 matching lines @@
 PassRefPtrWillBeRawPtr<DocumentFragment> createFragmentForTransformToFragment(const String&, const String& sourceMIMEType, Document& outputDoc);
 PassRefPtrWillBeRawPtr<DocumentFragment> createContextualFragment(const String&, Element*, ParserContentPolicy, ExceptionState&);
 
 bool isPlainTextMarkup(Node*);
 
 // These methods are used by HTMLElement & ShadowRoot to replace the
 // children with respected fragment/text.
 void replaceChildrenWithFragment(ContainerNode*, PassRefPtrWillBeRawPtr<DocumentFragment>, ExceptionState&);
 void replaceChildrenWithText(ContainerNode*, const String&, ExceptionState&);
 
-template <typename Strategy>
-class CORE_TEMPLATE_CLASS_EXPORT CreateMarkupAlgorithm {
-public:
-    using PositionType = typename Strategy::PositionType;
-
-    static String createMarkup(const PositionType& startPosition, const PositionType& endPosition, EAnnotateForInterchange shouldAnnotate = DoNotAnnotateForInterchange, ConvertBlocksToInlines = ConvertBlocksToInlines::NotConvert, EAbsoluteURLs shouldResolveURLs = DoNotResolveURLs, Node* constrainingAncestor = nullptr);
-};
-
-extern template class CORE_EXTERN_TEMPLATE_EXPORT CreateMarkupAlgorithm<EditingStrategy>;
-
 CORE_EXPORT String createMarkup(const Range*, EAnnotateForInterchange = DoNotAnnotateForInterchange, ConvertBlocksToInlines = ConvertBlocksToInlines::NotConvert, EAbsoluteURLs = DoNotResolveURLs, Node* constrainingAncestor = nullptr);
 CORE_EXPORT String createMarkup(const Node*, EChildrenOnly = IncludeNode, EAbsoluteURLs = DoNotResolveURLs);
 
+CORE_EXPORT String createMarkup(const Position& start, const Position& end, EAnnotateForInterchange = DoNotAnnotateForInterchange, ConvertBlocksToInlines = ConvertBlocksToInlines::NotConvert, EAbsoluteURLs = DoNotResolveURLs, Node* constrainingAncestor = nullptr);
+
 String urlToMarkup(const KURL&, const String& title);
 void mergeWithNextTextNode(Text*, ExceptionState&);
 
 bool propertyMissingOrEqualToNone(StylePropertySet*, CSSPropertyID);
 
 }
 
 #endif // markup_h