Oilpan: Move all supplements of Page, Document, and WorkerClients to the managed heap.

Source/core/xml/DocumentXPathEvaluator.cpp

 /*
  * Copyright (C) 2013 Google, Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 19 matching lines @@
 #include "core/dom/Document.h"
 #include "core/xml/XPathExpression.h"
 #include "core/xml/XPathResult.h"
 
 namespace WebCore {
 
 DocumentXPathEvaluator::DocumentXPathEvaluator()
 {
 }
 
-DocumentXPathEvaluator::~DocumentXPathEvaluator()
-{
-}
-
 DocumentXPathEvaluator& DocumentXPathEvaluator::from(DocumentSupplementable& document)
 {
     DocumentXPathEvaluator* cache = static_cast<DocumentXPathEvaluator*>(DocumentSupplement::from(document, supplementName()));
     if (!cache) {
         cache = new DocumentXPathEvaluator();
-        DocumentSupplement::provideTo(document, supplementName(), adoptPtr(cache));
+        DocumentSupplement::provideTo(document, supplementName(), adoptPtrWillBeNoop(cache));
     }
     return *cache;
 }
 
 PassRefPtrWillBeRawPtr<XPathExpression> DocumentXPathEvaluator::createExpression(DocumentSupplementable& document,
     const String& expression, PassRefPtrWillBeRawPtr<XPathNSResolver> resolver, ExceptionState& exceptionState)
 {
     DocumentXPathEvaluator& suplement = from(document);
     if (!suplement.m_xpathEvaluator)
         suplement.m_xpathEvaluator = XPathEvaluator::create();
@@ skipping 11 matching lines @@
 PassRefPtrWillBeRawPtr<XPathResult> DocumentXPathEvaluator::evaluate(DocumentSupplementable& document, const String& expression,
     Node* contextNode, PassRefPtrWillBeRawPtr<XPathNSResolver> resolver, unsigned short type,
     XPathResult* result, ExceptionState& exceptionState)
 {
     DocumentXPathEvaluator& suplement = from(document);
     if (!suplement.m_xpathEvaluator)
         suplement.m_xpathEvaluator = XPathEvaluator::create();
     return suplement.m_xpathEvaluator->evaluate(expression, contextNode, resolver, type, result, exceptionState);
 }
 
+void DocumentXPathEvaluator::trace(Visitor* visitor)
+{
+    visitor->trace(m_xpathEvaluator);
+}
+
 } // namespace WebCore