b=512884; nsStringGlue should be used in nsIPluginInstance.h; r+sr=jst

modules/plugin/base/public/nsIPluginInstance.idl

@@ -43,7 +43,7 @@ interface nsIOutputStream;
 
 %{C++
 #include "npapi.h"
-#include "nsString.h"
+#include "nsStringGlue.h"
 struct JSContext;
 struct JSObject;