Oilpan: Move core/xml/ to oilpan's heap

Source/core/xml/XPathExpression.h

 /*
  * Copyright 2005 Frerich Raabe <raabe@kde.org>
  * Copyright (C) 2006 Apple Computer, 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.
@@ skipping 10 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef XPathExpression_h
 #define XPathExpression_h
 
 #include "bindings/v8/ScriptWrappable.h"
+#include "heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace WebCore {
 
 class ExceptionState;
 class Node;
 class XPathNSResolver;
 class XPathResult;
 
 namespace XPath {
 class Expression;
 }
 
-class XPathExpression : public RefCounted<XPathExpression>, public ScriptWrappable {
+class XPathExpression : public RefCountedWillBeGarbageCollectedFinalized<XPathExpression>, public ScriptWrappable {
+    DECLARE_GC_INFO;
 public:
-    static PassRefPtr<XPathExpression> create() { return adoptRef(new XPathExpression); }
+    static PassRefPtrWillBeRawPtr<XPathExpression> create()
+    {
+        return adoptRefWillBeNoop(new XPathExpression);
+    }
     ~XPathExpression();
 
-    static PassRefPtr<XPathExpression> createExpression(const String& expression, PassRefPtr<XPathNSResolver>, ExceptionState&);
-    PassRefPtr<XPathResult> evaluate(Node* contextNode, unsigned short type, XPathResult*, ExceptionState&);
+    static PassRefPtrWillBeRawPtr<XPathExpression> createExpression(const String& expression, PassRefPtrWillBeRawPtr<XPathNSResolver>, ExceptionState&);
+    PassRefPtrWillBeRawPtr<XPathResult> evaluate(Node* contextNode, unsigned short type, XPathResult*, ExceptionState&);
+
+    void trace(Visitor*) { }
 
 private:
     XPathExpression()
     {
         ScriptWrappable::init(this);
     }
 
     XPath::Expression* m_topExpression;
 };
 
 }
 
 #endif // XPathExpression_h