Move Node::enclosingBlockFlowElement() to htmlediting.h

Source/core/editing/VisibleSelection.cpp

 /*
  * Copyright (C) 2004, 2005, 2006 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 255 matching lines @@
 
 static PassRefPtrWillBeRawPtr<Range> makeSearchRange(const Position& pos)
 {
     Node* n = pos.deprecatedNode();
     if (!n)
         return nullptr;
     Document& d = n->document();
     Node* de = d.documentElement();
     if (!de)
         return nullptr;
-    Node* boundary = n->enclosingBlockFlowElement();
+    Node* boundary = enclosingBlockFlowElement(*n);
     if (!boundary)
         return nullptr;
 
     RefPtrWillBeRawPtr<Range> searchRange(Range::create(d));
     TrackExceptionState exceptionState;
 
     Position start(pos.parentAnchoredEquivalent());
     searchRange->selectNodeContents(boundary, exceptionState);
     searchRange->setStart(start.containerNode(), start.offsetInContainerNode(), exceptionState);
 
@@ skipping 570 matching lines @@
     sel.showTreeForThis();
 }
 
 void showTree(const blink::VisibleSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
 }
 
 #endif