Enable Oilpan for core/xml/

Source/core/xml/XPathResult.cpp

Index: Source/core/xml/XPathResult.cpp
diff --git a/Source/core/xml/XPathResult.cpp b/Source/core/xml/XPathResult.cpp
index 2dcc058f1ec4579ef1599071ab6b3501f0e6d1f8..bb93f6a11c54e27ca28b9ba2f79c9f10519a8cb2 100644
--- a/Source/core/xml/XPathResult.cpp
+++ b/Source/core/xml/XPathResult.cpp
@@ -37,8 +37,6 @@ namespace blink {
 
 using namespace XPath;
 
-DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(XPathResult);
-
 XPathResult::XPathResult(EvaluationContext& context, const Value& value)
     : m_value(value)
     , m_nodeSetPosition(0)
@@ -65,6 +63,10 @@ XPathResult::XPathResult(EvaluationContext& context, const Value& value)
     ASSERT_NOT_REACHED();
 }
 
+XPathResult::~XPathResult()
+{
+}
+
 void XPathResult::trace(Visitor* visitor)
 {
     visitor->trace(m_value);