Oilpan: use transition types for remaining RefPtr<Document>s in dom/.

Source/bindings/v8/ScriptController.cpp

Index: Source/bindings/v8/ScriptController.cpp
diff --git a/Source/bindings/v8/ScriptController.cpp b/Source/bindings/v8/ScriptController.cpp
index a7b4ad160575ace052498de4f5417255a654f51e..be7c408f6e688b7f6ef012f578cd870c7e2a201e 100644
--- a/Source/bindings/v8/ScriptController.cpp
+++ b/Source/bindings/v8/ScriptController.cpp
@@ -516,7 +516,7 @@ bool ScriptController::executeScriptIfJavaScriptURL(const KURL& url)
     // We need to hold onto the LocalFrame here because executing script can
     // destroy the frame.
     RefPtr<LocalFrame> protector(m_frame);
-    RefPtr<Document> ownerDocument(m_frame->document());
+    RefPtrWillBeRawPtr<Document> ownerDocument(m_frame->document());
 
     const int javascriptSchemeLength = sizeof("javascript:") - 1;