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

third_party/WebKit/Source/core/svg/SVGAElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2010 Apple Inc. 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 137 matching lines @@
 }
 
 short SVGAElement::tabIndex() const
 {
     // Skip the supportsFocus check in SVGElement.
     return Element::tabIndex();
 }
 
 bool SVGAElement::supportsFocus() const
 {
-    if (hasEditableStyle())
+    if (hasEditableStyle(*this))
         return SVGGraphicsElement::supportsFocus();
     // If not a link we should still be able to focus the element if it has tabIndex.
     return isLink() || SVGGraphicsElement::supportsFocus();
 }
 
 bool SVGAElement::shouldHaveFocusAppearance() const
 {
     return !m_wasFocusedByMouse || SVGGraphicsElement::supportsFocus();
 }
 
@@ skipping 31 matching lines @@
         return SVGElement::isKeyboardFocusable();
     if (isLink() && !document().frameHost()->chromeClient().tabsToLinks())
         return false;
     return SVGElement::isKeyboardFocusable();
 }
 
 bool SVGAElement::canStartSelection() const
 {
     if (!isLink())
         return SVGElement::canStartSelection();
-    return hasEditableStyle();
+    return hasEditableStyle(*this);
 }
 
 bool SVGAElement::willRespondToMouseClickEvents()
 {
     return isLink() || SVGGraphicsElement::willRespondToMouseClickEvents();
 }
 
 } // namespace blink