Rename renderer() to layoutObject().

Source/core/dom/CharacterData.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2013 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 147 matching lines @@
 void CharacterData::setNodeValue(const String& nodeValue)
 {
     setData(nodeValue);
 }
 
 void CharacterData::setDataAndUpdate(const String& newData, unsigned offsetOfReplacedData, unsigned oldLength, unsigned newLength, UpdateSource source, RecalcStyleBehavior recalcStyleBehavior)
 {
     String oldData = m_data;
     m_data = newData;
 
-    ASSERT(!renderer() || isTextNode());
+    ASSERT(!layoutObject() || isTextNode());
     if (isTextNode())
         toText(this)->updateTextRenderer(offsetOfReplacedData, oldLength, recalcStyleBehavior);
 
     if (source != UpdateFromParser) {
         if (nodeType() == PROCESSING_INSTRUCTION_NODE)
             toProcessingInstruction(this)->didAttributeChanged();
 
         if (document().frame())
             document().frame()->selection().didUpdateCharacterData(this, offsetOfReplacedData, oldLength, newLength);
     }
@@ skipping 22 matching lines @@
     }
     InspectorInstrumentation::characterDataModified(this);
 }
 
 int CharacterData::maxCharacterOffset() const
 {
     return static_cast<int>(length());
 }
 
 } // namespace blink