Fix Transformiix standalone bustage (does not affect Mozilla build). r=Pike.

content/xslt/src/xslt/txUnknownHandler.cpp

@@ -37,6 +37,7 @@
  * ***** END LICENSE BLOCK ***** */
 
 #include "txUnknownHandler.h"
+#include <string.h>
 
 PRUint32 txUnknownHandler::kReasonableTransactions = 8;