Refactor Node::showTree*() functions.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1264 matching lines @@
 
 void LayoutObject::dirtyLinesFromChangedChild(LayoutObject*, MarkingBehavior)
 {
 }
 
 #ifndef NDEBUG
 
 void LayoutObject::showTreeForThis() const
 {
     if (node())
-        node()->showTreeForThis();
+        ::showTree(node());
 }
 
 void LayoutObject::showLayoutTreeForThis() const
 {
     showLayoutTree(this, 0);
 }
 
 void LayoutObject::showLineTreeForThis() const
 {
     if (LayoutBlock* cb = containingBlock()) {
@@ skipping 1935 matching lines @@
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     } else {
         WTFLogAlways("%s", "Cannot showLayoutTree. Root is (nil)");
     }
 }
 
 #endif