Oilpan: Replace RefPtrs to Node and its subclasses in core/rendering with Oilpan transition types.

Source/core/rendering/FastTextAutosizer.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 37 matching lines @@
 #include "core/dom/ExecutionContextTask.h"
 #endif
 
 using namespace std;
 
 namespace WebCore {
 
 #ifdef AUTOSIZING_DOM_DEBUG_INFO
 class WriteDebugInfoTask : public ExecutionContextTask {
 public:
-    WriteDebugInfoTask(PassRefPtr<Element> element, AtomicString value)
+    WriteDebugInfoTask(PassRefPtrWillBeRawPtr<Element> element, AtomicString value)
         : m_element(element)
         , m_value(value)
     {
     }
 
     virtual void performTask(ExecutionContext*)
     {
         m_element->setAttribute("data-autosizing", m_value, ASSERT_NO_EXCEPTION);
     }
 
 private:
-    RefPtr<Element> m_element;
+    RefPtrWillBePersistent<Element> m_element;
     AtomicString m_value;
 };
 
 static void writeDebugInfo(RenderObject* renderer, const AtomicString& output)
 {
     Node* node = renderer->node();
     if (!node)
         return;
     if (node->isDocumentNode())
         node = toDocument(node)->documentElement();
@@ skipping 1029 matching lines @@
 FastTextAutosizer::DeferUpdatePageInfo::~DeferUpdatePageInfo()
 {
     if (FastTextAutosizer* textAutosizer = m_mainFrame->document()->fastTextAutosizer()) {
         ASSERT(textAutosizer->m_updatePageInfoDeferred);
         textAutosizer->m_updatePageInfoDeferred = false;
         textAutosizer->updatePageInfoInAllFrames();
     }
 }
 
 } // namespace WebCore