Oilpan: Reapply: Remove all the RefPtrs and most of the raw pointers to style

Source/core/xml/XSLTProcessor.cpp

Index: Source/core/xml/XSLTProcessor.cpp
diff --git a/Source/core/xml/XSLTProcessor.cpp b/Source/core/xml/XSLTProcessor.cpp
index a2061fa7746d56375a0c9432a278172ceef4f2e6..b6408dbe829ec2b970dc6ff389cfef35a7911e0e 100644
--- a/Source/core/xml/XSLTProcessor.cpp
+++ b/Source/core/xml/XSLTProcessor.cpp
@@ -54,8 +54,10 @@ static inline void transformTextStringToXHTMLDocumentString(String& text)
 
 XSLTProcessor::~XSLTProcessor()
 {
+#if !ENABLE(OILPAN)
     // Stylesheet shouldn't outlive its root node.
     ASSERT(!m_stylesheetRootNode || !m_stylesheet || m_stylesheet->hasOneRef());
+#endif
 }
 
 PassRefPtr<Document> XSLTProcessor::createDocumentFromSource(const String& sourceString,
@@ -157,4 +159,9 @@ void XSLTProcessor::reset()
     m_parameters.clear();
 }
 
+void XSLTProcessor::trace(Visitor* visitor)
+{
+    visitor->trace(m_stylesheet);
+}
+
 } // namespace WebCore