[Editing][DOM][CodeHealth] Make Node::hasEditableStyle global functions.

third_party/WebKit/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 569 matching lines @@
 void VisibleSelectionTemplate<Strategy>::adjustSelectionToAvoidCrossingShadowBoundaries()
 {
     if (m_base.isNull() || m_start.isNull() || m_base.isNull())
         return;
     SelectionAdjuster::adjustSelectionToAvoidCrossingShadowBoundaries(this);
 }
 
 static Element* lowestEditableAncestor(Node* node)
 {
     while (node) {
-        if (node->hasEditableStyle())
+        if (hasEditableStyle(*node))
             return rootEditableElement(*node);
         if (isHTMLBodyElement(*node))
             break;
         node = node->parentNode();
     }
 
     return nullptr;
 }
 
 template <typename Strategy>
@@ skipping 307 matching lines @@
 {
     sel.showTreeForThis();
 }
 
 void showTree(const blink::VisibleSelectionInFlatTree* sel)
 {
     if (sel)
         sel->showTreeForThis();
 }
 #endif