Convert XMLDocumentParser code to Use more reference

Source/core/inspector/DOMPatchSupport.cpp

Index: Source/core/inspector/DOMPatchSupport.cpp
diff --git a/Source/core/inspector/DOMPatchSupport.cpp b/Source/core/inspector/DOMPatchSupport.cpp
index 4d867fb93ace14a7a1aaf63b4c5c102ad54ccabd..3a82b89a14da88a77d48952a7bcca473e66594cf 100644
--- a/Source/core/inspector/DOMPatchSupport.cpp
+++ b/Source/core/inspector/DOMPatchSupport.cpp
@@ -97,7 +97,7 @@ void DOMPatchSupport::patchDocument(const String& markup)
     if (m_document.isHTMLDocument())
         parser = HTMLDocumentParser::create(toHTMLDocument(newDocument.get()), false);
     else
-        parser = XMLDocumentParser::create(newDocument.get(), 0);
+        parser = XMLDocumentParser::create(*newDocument, 0);
     parser->insert(markup); // Use insert() so that the parser will not yield.
     parser->finish();
     parser->detach();