Cleanup anonymous text objects that pass the document as a node.

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

 /*
  * This file is part of the select element layoutObject in WebCore.
  *
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  *               All rights reserved.
  *           (C) 2009 Torch Mobile Inc. All rights reserved.
  *               (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 52 matching lines @@
   if (m_innerBlock) {
     ASSERT(firstChild() == m_innerBlock);
     ASSERT(!m_innerBlock->nextSibling());
     return;
   }
 
   // Create an anonymous block.
   ASSERT(!firstChild());
   m_innerBlock = createAnonymousBlock();
 
-  m_buttonText = new LayoutText(&document(), StringImpl::empty);
+  m_buttonText = LayoutText::createEmptyAnonymous(document());
   // We need to set the text explicitly though it was specified in the
   // constructor because LayoutText doesn't refer to the text
   // specified in the constructor in a case of re-transforming.
   m_buttonText->setStyle(mutableStyle());
   m_innerBlock->addChild(m_buttonText);
 
   adjustInnerStyle();
   LayoutFlexibleBox::addChild(m_innerBlock);
 }
 
@@ skipping 230 matching lines @@
 
 LayoutUnit LayoutMenuList::clientPaddingLeft() const {
   return paddingLeft() + m_innerBlock->paddingLeft();
 }
 
 LayoutUnit LayoutMenuList::clientPaddingRight() const {
   return paddingRight() + m_innerBlock->paddingRight();
 }
 
 }  // namespace blink