Enable Oilpan for core/xml/

Source/core/xml/XPathEvaluator.h

Index: Source/core/xml/XPathEvaluator.h
diff --git a/Source/core/xml/XPathEvaluator.h b/Source/core/xml/XPathEvaluator.h
index b0ac14c90afe77bb99dd0fd6d1b03787aac7aea1..dcae33e097654a0db3c0c8dee42a1d5144949ecf 100644
--- a/Source/core/xml/XPathEvaluator.h
+++ b/Source/core/xml/XPathEvaluator.h
@@ -29,9 +29,6 @@
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/heap/Handle.h"
-#include "wtf/Forward.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
 
 namespace blink {
 
@@ -41,18 +38,18 @@ class XPathExpression;
 class XPathNSResolver;
 class XPathResult;
 
-class XPathEvaluator final : public RefCountedWillBeGarbageCollected<XPathEvaluator>, public ScriptWrappable {
+class XPathEvaluator final : public GarbageCollected<XPathEvaluator>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtrWillBeRawPtr<XPathEvaluator> create()
+    static XPathEvaluator* create()
     {
-        return adoptRefWillBeNoop(new XPathEvaluator);
+        return new XPathEvaluator;
     }
 
-    PassRefPtrWillBeRawPtr<XPathExpression> createExpression(const String& expression, PassRefPtrWillBeRawPtr<XPathNSResolver>, ExceptionState&);
-    PassRefPtrWillBeRawPtr<XPathNSResolver> createNSResolver(Node* nodeResolver);
-    PassRefPtrWillBeRawPtr<XPathResult> evaluate(const String& expression, Node* contextNode,
-        PassRefPtrWillBeRawPtr<XPathNSResolver>, unsigned short type, XPathResult*, ExceptionState&);
+    XPathExpression* createExpression(const String& expression, XPathNSResolver*, ExceptionState&);
+    XPathNSResolver* createNSResolver(Node* nodeResolver);
+    XPathResult* evaluate(const String& expression, Node* contextNode,
+        XPathNSResolver*, unsigned short type, XPathResult*, ExceptionState&);
 
     void trace(Visitor*) { }