Fix build bustage.

content/xul/document/src/nsXULDocument.cpp

@@ -4221,7 +4221,8 @@ nsXULDocument::PrepareToLoadPrototype(nsIURI* aURI, const char* aCommand,
     parser->SetCommand(nsCRT::strcmp(aCommand, "view-source") ? eViewNormal :
       eViewSource);
 
-    parser->SetDocumentCharset(NS_ConvertASCIItoUCS2("UTF-8"), kCharsetFromDocTypeDefault);
+    nsAutoString charset(NS_ConvertASCIItoUCS2("UTF-8"));
+    parser->SetDocumentCharset(charset, kCharsetFromDocTypeDefault);
     parser->SetContentSink(sink); // grabs a reference to the parser
 
     *aResult = parser;

rdf/base/src/nsRDFXMLDataSource.cpp

@@ -903,7 +903,8 @@ RDFXMLDataSourceImpl::Refresh(PRBool aBlocking)
                                             getter_AddRefs(parser));
     if (NS_FAILED(rv)) return rv;
 
-    parser->SetDocumentCharset(NS_ConvertASCIItoUCS2("UTF-8"), kCharsetFromDocTypeDefault);
+    nsAutoString charset(NS_ConvertASCIItoUCS2("UTF-8"));
+    parser->SetDocumentCharset(charset, kCharsetFromDocTypeDefault);
     parser->SetContentSink(sink);
 
     rv = parser->QueryInterface(NS_GET_IID(nsIStreamListener), getter_AddRefs(mParser));

rdf/content/src/nsXULDocument.cpp

@@ -4221,7 +4221,8 @@ nsXULDocument::PrepareToLoadPrototype(nsIURI* aURI, const char* aCommand,
     parser->SetCommand(nsCRT::strcmp(aCommand, "view-source") ? eViewNormal :
       eViewSource);
 
-    parser->SetDocumentCharset(NS_ConvertASCIItoUCS2("UTF-8"), kCharsetFromDocTypeDefault);
+    nsAutoString charset(NS_ConvertASCIItoUCS2("UTF-8"));
+    parser->SetDocumentCharset(charset, kCharsetFromDocTypeDefault);
     parser->SetContentSink(sink); // grabs a reference to the parser
 
     *aResult = parser;

rdf/content/src/nsXULKeyListener.cpp

@@ -1149,7 +1149,8 @@ NS_IMETHODIMP nsXULKeyListenerImpl::LoadKeyBindingDocument(nsIURI* aURI, nsIDOMX
 
   parser->SetCommand(eViewNormal);
 
-  parser->SetDocumentCharset(NS_ConvertASCIItoUCS2("UTF-8"), kCharsetFromDocTypeDefault);
+  nsAutoString charset(NS_ConvertASCIItoUCS2("UTF-8"));
+  parser->SetDocumentCharset(charset, kCharsetFromDocTypeDefault);
   parser->SetContentSink(sink); // grabs a reference to the parser
 
   // Now do a blocking synchronous parse of the file.