Replace RenderArena with PartitionAlloc.

Source/core/rendering/InlineFlowBox.h

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 78 matching lines @@
     void collectLeafBoxesInLogicalOrder(Vector<InlineBox*>&, CustomInlineBoxRangeReverse customReverseImplementation = 0, void* userData = 0) const;
 
     virtual void setConstructed() OVERRIDE FINAL
     {
         InlineBox::setConstructed();
         for (InlineBox* child = firstChild(); child; child = child->nextOnLine())
             child->setConstructed();
     }
 
     void addToLine(InlineBox* child);
-    virtual void deleteLine(RenderArena*) OVERRIDE FINAL;
+    virtual void deleteLine() OVERRIDE FINAL;
     virtual void extractLine() OVERRIDE FINAL;
     virtual void attachLine() OVERRIDE FINAL;
     virtual void adjustPosition(float dx, float dy);
 
     virtual void extractLineBoxFromRenderObject();
     virtual void attachLineBoxToRenderObject();
     virtual void removeLineBoxFromRenderObject();
 
     virtual void clearTruncation() OVERRIDE;
 
@@ skipping 272 matching lines @@
 }
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::InlineFlowBox*);
 #endif
 
 #endif // InlineFlowBox_h