Replace RenderArena with PartitionAlloc.

Source/core/rendering/RenderObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google 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
@@ skipping 283 matching lines @@
 
     void showRenderObject() const;
     // We don't make printedCharacters an optional parameter so that
     // showRenderObject can be called from gdb easily.
     void showRenderObject(int printedCharacters) const;
     void showRenderTreeAndMark(const RenderObject* markedObject1 = 0, const char* markedLabel1 = 0, const RenderObject* markedObject2 = 0, const char* markedLabel2 = 0, int depth = 0) const;
 #endif
 
     static RenderObject* createObject(Element*, RenderStyle*);
 
-    // Overloaded new operator.  Derived classes must override operator new
-    // in order to allocate out of the RenderArena.
-    void* operator new(size_t, RenderArena*);
-
-    // Overridden to prevent the normal delete from being called.
-    void operator delete(void*, size_t);
-
-private:
-    // The normal operator new is disallowed on all render objects.
-    void* operator new(size_t) throw();
-
-public:
-    RenderArena* renderArena() const { return document()->renderArena(); }
+#if ENABLE(PARTITION_ALLOC)
+    void* operator new(size_t);
+#endif
 
     bool isPseudoElement() const { return node() && node()->isPseudoElement(); }
 
     virtual bool isBR() const { return false; }
     virtual bool isBlockFlow() const { return false; }
     virtual bool isBoxModelObject() const { return false; }
     virtual bool isCounter() const { return false; }
     virtual bool isDialog() const { return false; }
     virtual bool isQuote() const { return false; }
 
@@ skipping 616 matching lines @@
     {
         return outlineBoundsForRepaint(0);
     }
 
     // Return the renderer whose background style is used to paint the root background. Should only be called on the renderer for which isRoot() is true.
     RenderObject* rendererForRootBackground();
 
     RespectImageOrientationEnum shouldRespectImageOrientation() const;
 
 protected:
+#if ENABLE(PARTITION_ALLOC)
+    void operator delete(void*);
+#endif
     inline bool layerCreationAllowedForSubtree() const;
 
     // Overrides should call the superclass at the end
     virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle);
     // Overrides should call the superclass at the start
     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
     void propagateStyleToAnonymousChildren(bool blockChildrenOnly = false);
 
     void drawLineForBoxSide(GraphicsContext*, int x1, int y1, int x2, int y2, BoxSide,
                             Color, EBorderStyle, int adjbw1, int adjbw2, bool antialias = false);
 
     void paintFocusRing(PaintInfo&, const LayoutPoint&, RenderStyle*);
     void paintOutline(PaintInfo&, const LayoutRect&);
     void addPDFURLRect(GraphicsContext*, const LayoutRect&);
     
     virtual LayoutRect viewRect() const;
 
     void adjustRectForOutlineAndShadow(LayoutRect&) const;
 
     void clearLayoutRootIfNeeded() const;
     virtual void willBeDestroyed();
-    void arenaDelete(RenderArena*, void* objectBase);
+    void postDestroy();
 
     virtual bool canBeReplacedWithInlineRunIn() const;
 
     virtual void insertedIntoTree();
     virtual void willBeRemovedFromTree();
 
     void setDocumentForAnonymous(Document* document) { ASSERT(isAnonymous()); m_node = document; }
 
 private:
     RenderFlowThread* locateFlowThreadContainingBlock() const;
@@ skipping 333 matching lines @@
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::RenderObject*);
 void showLineTree(const WebCore::RenderObject*);
 void showRenderTree(const WebCore::RenderObject* object1);
 // We don't make object2 an optional parameter so that showRenderTree
 // can be called from gdb easily.
 void showRenderTree(const WebCore::RenderObject* object1, const WebCore::RenderObject* object2);
 #endif
 
 #endif // RenderObject_h