Enable Oilpan for core/xml/

Source/core/xml/XSLStyleSheetLibxslt.cpp

Index: Source/core/xml/XSLStyleSheetLibxslt.cpp
diff --git a/Source/core/xml/XSLStyleSheetLibxslt.cpp b/Source/core/xml/XSLStyleSheetLibxslt.cpp
index ae584c880924ef50880349b1a1292f57fd56c466..d9575333da713f2289c7a2d6363b3b84bb81f1d7 100644
--- a/Source/core/xml/XSLStyleSheetLibxslt.cpp
+++ b/Source/core/xml/XSLStyleSheetLibxslt.cpp
@@ -235,10 +235,9 @@ void XSLStyleSheet::loadChildSheets()
 
 void XSLStyleSheet::loadChildSheet(const String& href)
 {
-    OwnPtrWillBeRawPtr<XSLImportRule> childRule = XSLImportRule::create(this, href);
-    XSLImportRule* c = childRule.get();
-    m_children.append(childRule.release());
-    c->loadSheet();
+    XSLImportRule* childRule = XSLImportRule::create(this, href);
+    m_children.append(childRule);
+    childRule->loadSheet();
 }
 
 xsltStylesheetPtr XSLStyleSheet::compileStyleSheet()