Replace RenderArena with PartitionAlloc.

Source/core/rendering/InlineTextBox.cpp

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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 48 matching lines @@
     void* pointers[2];
 };
 
 COMPILE_ASSERT(sizeof(InlineTextBox) == sizeof(SameSizeAsInlineTextBox), InlineTextBox_should_stay_small);
 
 typedef WTF::HashMap<const InlineTextBox*, LayoutRect> InlineTextBoxOverflowMap;
 static InlineTextBoxOverflowMap* gTextBoxesWithOverflow;
 
 static const int misspellingLineThickness = 3;
 
-void InlineTextBox::destroy(RenderArena* arena)
+void InlineTextBox::destroy()
 {
     if (!knownToHaveNoOverflow() && gTextBoxesWithOverflow)
         gTextBoxesWithOverflow->remove(this);
-    InlineBox::destroy(arena);
+    InlineBox::destroy();
 }
 
 void InlineTextBox::markDirty(bool dirty)
 {
     if (dirty) {
         m_len = 0;
         m_start = 0;
     }
     InlineBox::markDirty(dirty);
 }
@@ skipping 148 matching lines @@
     else if (r.maxX() > logicalRight())
         logicalWidth = logicalRight() - r.x();
 
     LayoutPoint topPoint = isHorizontal() ? LayoutPoint(r.x(), selTop) : LayoutPoint(selTop, r.x());
     LayoutUnit width = isHorizontal() ? logicalWidth : selHeight;
     LayoutUnit height = isHorizontal() ? selHeight : logicalWidth;
 
     return LayoutRect(topPoint, LayoutSize(width, height));
 }
 
-void InlineTextBox::deleteLine(RenderArena* arena)
+void InlineTextBox::deleteLine()
 {
     toRenderText(renderer())->removeTextBox(this);
-    destroy(arena);
+    destroy();
 }
 
 void InlineTextBox::extractLine()
 {
     if (extracted())
         return;
 
     toRenderText(renderer())->extractTextBox(this);
 }
 
@@ skipping 1306 matching lines @@
 
 void InlineTextBox::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::Rendering);
     InlineBox::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_prevTextBox, "prevTextBox");
     info.addMember(m_nextTextBox, "nextTextBox");
 }
 
 } // namespace WebCore