Replace RenderArena with PartitionAlloc

Source/core/rendering/RenderView.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 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,
@@ skipping 875 matching lines @@
     }
 
     return size;
 }
 
 void RenderView::releaseWidgets(Vector<RenderWidget*>& renderWidgets)
 {
     size_t size = renderWidgets.size();
 
     for (size_t i = 0; i < size; ++i)
-        renderWidgets[i]->deref(renderArena());
+        renderWidgets[i]->deref();
 }
 
 void RenderView::updateWidgetPositions()
 {
     // updateWidgetPosition() can possibly cause layout to be re-entered (via plug-ins running
     // scripts in response to NPP_SetWindow, for example), so we need to keep the Widgets
     // alive during enumeration.
 
     Vector<RenderWidget*> renderWidgets;
     size_t size = getRetainedWidgets(renderWidgets);
@@ skipping 101 matching lines @@
 {
     Frame* frame = m_frameView->frame();
     return frame ? frame->pageZoomFactor() : 1;
 }
 
 void RenderView::pushLayoutState(RenderObject* root)
 {
     ASSERT(m_layoutStateDisableCount == 0);
     ASSERT(m_layoutState == 0);
 
-    m_layoutState = new (renderArena()) LayoutState(root);
+    m_layoutState = new LayoutState(root);
 }
 
 bool RenderView::shouldDisableLayoutStateForSubtree(RenderObject* renderer) const
 {
     RenderObject* o = renderer;
     while (o) {
         if (o->hasColumns() || o->hasTransform() || o->hasReflection())
             return true;
         o = o->container();
     }
@@ skipping 119 matching lines @@
 #endif
 
     if (layoutState)
         layoutState->m_isPaginated = m_fragmenting;
 
     if (m_flowThreadState != RenderObject::NotInsideFlowThread)
         m_root->setFlowThreadStateIncludingDescendants(m_flowThreadState);
 }
 
 } // namespace WebCore