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

third_party/WebKit/Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 789 matching lines @@
     if (node && node->isDocumentNode())
         return true;
 
     if (!hasOverflowClip())
         return false;
 
     bool hasScrollableOverflow = hasScrollableOverflowX() || hasScrollableOverflowY();
     if (scrollsOverflow() && hasScrollableOverflow)
         return true;
 
-    return node && node->hasEditableStyle();
+    return node && hasEditableStyle(*node);
 }
 
 void LayoutBox::autoscroll(const IntPoint& positionInRootFrame)
 {
     LocalFrame* frame = this->frame();
     if (!frame)
         return;
 
     FrameView* frameView = frame->view();
     if (!frameView)
@@ skipping 4141 matching lines @@
         m_rareData->m_snapAreas->remove(&snapArea);
     }
 }
 
 SnapAreaSet* LayoutBox::snapAreas() const
 {
     return m_rareData ? m_rareData->m_snapAreas.get() : nullptr;
 }
 
 } // namespace blink