Fixing build bustage on BeOS (bug 257442). Patch by thesuckiestemail@yahoo.se, r+sr=jst@mozilla.org

modules/plugin/base/public/nptypes.h

@@ -80,6 +80,8 @@
     #include <inttypes.h>
     #include <stdbool.h>
   #endif
+#elif defined(BEOS)
+  #include <inttypes.h>
 #else
   /*
    * For those that ship a standard C99 stdint.h header file, include