Refactoring: Have StyledMarkupAccumulator use MarkupFormatter

Source/core/editing/StyledMarkupAccumulator.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009, 2010, 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011 Igalia S.L.
  * Copyright (C) 2011 Motorola Mobility. 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
@@ skipping 12 matching lines @@
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef StyledMarkupAccumulator_h
 #define StyledMarkupAccumulator_h
 
 #include "core/editing/EditingStyle.h"
-#include "core/editing/MarkupAccumulator.h"
+#include "core/editing/MarkupFormatter.h"
 #include "core/editing/TextOffset.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class Document;
 class StylePropertySet;
 class Text;
 
 class StyledMarkupAccumulator final {
@@ skipping 29 matching lines @@
     bool shouldApplyWrappingStyle(const Node&) const;
 
     bool shouldAnnotate() const;
 
     void appendElement(StringBuilder&, Element&);
     void appendElement(StringBuilder&, Element&, bool, RangeFullySelectsNode);
     void appendStartMarkup(StringBuilder&, Node&);
     void appendEndMarkup(StringBuilder&, const Element&);
     void appendStyleNodeOpenTag(StringBuilder&, StylePropertySet*, bool isBlock = false);
 
-    MarkupAccumulator m_accumulator;
+    MarkupFormatter m_formatter;
     const TextOffset m_start;
     const TextOffset m_end;
     const RefPtrWillBeMember<Document> m_document;
     const EAnnotateForInterchange m_shouldAnnotate;
     const ConvertBlocksToInlines m_convertBlocksToInlines;
     RawPtrWillBeMember<Node> m_highestNodeToBeSerialized;
     RefPtrWillBeMember<EditingStyle> m_wrappingStyle;
+    StringBuilder m_result;
     Vector<String> m_reversedPrecedingMarkup;
 };
 
 } // namespace blink
 
 #endif // StyledMarkupAccumulator_h