[webapi] To trigger onmessage event by sendNDEF() in test

- Fail reason: XWALK-3057 Fail to fire the onmessageread event when try to peer IVI with a NFC device

Impacted tests(approved): new 0, update 1, delete 0
Unit test platform: [Tizen IVI]
Unit test result summary: pass 0, fail 1, block 0