Rename renderer() to layoutObject().

Source/core/dom/LayoutTreeBuilder.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2011 Google 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
@@ skipping 29 matching lines @@
 class LayoutStyle;
 
 template <typename NodeType>
 class LayoutTreeBuilder {
     STACK_ALLOCATED();
 protected:
     LayoutTreeBuilder(NodeType& node, LayoutObject* renderingParent)
         : m_node(node)
         , m_renderingParent(renderingParent)
     {
-        ASSERT(!node.renderer());
+        ASSERT(!node.layoutObject());
         ASSERT(node.needsAttach());
         ASSERT(node.document().inStyleRecalc());
 
         // FIXME: We should be able to ASSERT(node->inActiveDocument()) but childrenChanged is called
         // before ChildNodeInsertionNotifier in ContainerNode's methods and some implementations
         // will trigger a layout inside childrenChanged.
         // Mainly HTMLTextAreaElement::childrenChanged calls HTMLTextFormControlElement::setSelectionRange
         // which does an updateLayoutIgnorePendingStylesheets.
     }
 
@@ skipping 38 matching lines @@
 public:
     LayoutTreeBuilderForText(Text& text, LayoutObject* renderingParent)
         : LayoutTreeBuilder(text, renderingParent) { }
 
     void createRenderer();
 };
 
 } // namespace blink
 
 #endif