Oilpan: move RenderObjects off heap.

Source/core/rendering/RenderPart.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)
  * Copyright (C) 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. 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
@@ skipping 23 matching lines @@
 #include "core/plugins/PluginView.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/svg/RenderSVGRoot.h"
 
 namespace blink {
 
 RenderPart::RenderPart(Element* element)
     : RenderReplaced(element)
-#if !ENABLE(OILPAN)
     // Reference counting is used to prevent the part from being destroyed
     // while inside the Widget code, which might not be able to handle that.
     , m_refCount(1)
-#endif
 {
     ASSERT(element);
     frameView()->addPart(this);
     setInline(false);
 }
 
-#if !ENABLE(OILPAN)
 void RenderPart::deref()
 {
     if (--m_refCount <= 0)
         postDestroy();
 }
-#endif
 
 void RenderPart::willBeDestroyed()
 {
     frameView()->removePart(this);
 
     if (AXObjectCache* cache = document().existingAXObjectCache()) {
         cache->childrenChanged(this->parent());
         cache->remove(this);
     }
 
     Element* element = toElement(node());
     if (element && element->isFrameOwnerElement())
         toHTMLFrameOwnerElement(element)->setWidget(nullptr);
 
     RenderReplaced::willBeDestroyed();
 }
 
 void RenderPart::destroy()
 {
-#if ENABLE(ASSERT) && ENABLE(OILPAN)
-    ASSERT(!m_didCallDestroy);
-    m_didCallDestroy = true;
-#endif
     willBeDestroyed();
     clearNode();
-#if ENABLE(OILPAN)
-    // In Oilpan, postDestroy doesn't delete |this|. So calling it here is safe
-    // though |this| will be referred in FrameView.
-    postDestroy();
-#else
     deref();
-#endif
 }
 
 RenderPart::~RenderPart()
 {
-#if !ENABLE(OILPAN)
     ASSERT(m_refCount <= 0);
-#endif
 }
 
 Widget* RenderPart::widget() const
 {
     // Plugin widgets are stored in their DOM node. This includes HTMLAppletElement.
     Element* element = toElement(node());
 
     if (element && element->isFrameOwnerElement())
         return toHTMLFrameOwnerElement(element)->ownedWidget();
 
@@ skipping 218 matching lines @@
     if (widget->frameRect() == newFrame)
         return false;
 
     RefPtrWillBeRawPtr<RenderPart> protector(this);
     RefPtrWillBeRawPtr<Node> protectedNode(node());
     widget->setFrameRect(newFrame);
     return widget->frameRect().size() != newFrame.size();
 }
 
 }