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

third_party/WebKit/Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 342 matching lines @@
 static Widget* widgetForElement(const Element& focusedElement)
 {
     LayoutObject* layoutObject = focusedElement.layoutObject();
     if (!layoutObject || !layoutObject->isLayoutPart())
         return 0;
     return toLayoutPart(layoutObject)->widget();
 }
 
 static bool acceptsEditingFocus(const Element& element)
 {
-    DCHECK(element.hasEditableStyle());
+    DCHECK(hasEditableStyle(element));
 
     return element.document().frame() && rootEditableElement(element);
 }
 
 uint64_t Document::s_globalTreeVersion = 0;
 
 static bool s_threadedParsingEnabledForTesting = true;
 
 // This doesn't work with non-Document ExecutionContext.
 static void runAutofocusTask(ExecutionContext* context)
@@ skipping 5665 matching lines @@
 }
 
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (Document* document : set)
         fprintf(stderr, "- Document %p URL: %s\n", document, document->url().getString().utf8().data());
 }
 #endif