[Caja] Adds tame, untame, tamesTo, tamesToSelf, and extend to ___ (issue2311042)

[metaweta]

Reviewers: jasvir,

Description:
Adds tame, untame, tamesTo, tamesToSelf, and extend to ___

Please review this at http://codereview.appspot.com/2311042/

Affected files:
  M     src/com/google/caja/es53.js


Index: src/com/google/caja/es53.js
===================================================================
--- src/com/google/caja/es53.js (revision 4291)
+++ src/com/google/caja/es53.js (working copy)
@@ -4529,7 +4529,13 @@
       makeNormalNewModuleHandler: makeNormalNewModuleHandler,
       prepareModule: prepareModule,
       loadModule: loadModule,
-      NO_RESULT: NO_RESULT
+      NO_RESULT: NO_RESULT,
+      // Taming
+      tame: tame,
+      untame: untame,
+      tamesTo: tamesTo,
+      tamesToSelf: tamesToSelf,
+      extend: extend
     };
   var cajaVMKeys = ownEnumKeys(cajaVM);
   for (var i = 0; i < cajaVMKeys.length; ++i) {