Refactoring: Move StyledMarkupSerializer::m_reversedPrecedingMarkup to StyledMarkupAccumulator

Source/core/editing/StyledMarkupSerializer.h

Index: Source/core/editing/StyledMarkupSerializer.h
diff --git a/Source/core/editing/StyledMarkupSerializer.h b/Source/core/editing/StyledMarkupSerializer.h
index 9b7cbc06cecb41ab2bd89b0131ffd303ed8c9e3d..3143ac53f1a67e5bb1dcbb07efd413c0a31b3a1c 100644
--- a/Source/core/editing/StyledMarkupSerializer.h
+++ b/Source/core/editing/StyledMarkupSerializer.h
@@ -53,23 +53,14 @@ private:
     enum class NodeTraversalMode { EmitString, DoNotEmitString };
 
     Node* serializeNodes(Node* startNode, Node* pastEnd);
-    String takeResults();
 
     Node* traverseNodesForSerialization(Node* startNode, Node* pastEnd, NodeTraversalMode);
 
-    // TODO(hajimehoshi): These functions should be at the accumulator.
-    void wrapWithNode(ContainerNode&, StyledMarkupAccumulator::RangeFullySelectsNode = StyledMarkupAccumulator::DoesFullySelectNode);
-    void wrapWithStyleNode(StylePropertySet*, bool isBlock = false);
-
-    bool convertBlocksToInlines() const { return m_convertBlocksToInlines == ConvertBlocksToInlines::Convert; }
-
     StyledMarkupAccumulator m_markupAccumulator;
     const PositionType m_start;
     const PositionType m_end;
     const EAnnotateForInterchange m_shouldAnnotate;
     const RefPtrWillBeMember<Node> m_highestNodeToBeSerialized;
-    const ConvertBlocksToInlines m_convertBlocksToInlines;
-    Vector<String> m_reversedPrecedingMarkup;
 };
 
 extern template class StyledMarkupSerializer<EditingStrategy>;