Correct function signature to fix Solaris bustage.

content/xslt/src/xslt/txMozillaStylesheetCompiler.cpp

@@ -225,7 +225,7 @@ txStylesheetSink::HandleProcessingInstruction(const PRUnichar *aTarget,
 NS_IMETHODIMP
 txStylesheetSink::HandleXMLDeclaration(const PRUnichar *aVersion,
                                        const PRUnichar *aEncoding,
-                                       const PRInt32 aStandalone)
+                                       PRInt32 aStandalone)
 {
     return NS_OK;
 }