Bug 978707 : update checkSessionToken. r=dimi

From da437d03c648c33cd168db21ed5ef95eaab07da3 Mon Sep 17 00:00:00 2001
---
 dom/nfc/NfcContentHelper.js     |  5 +++--
 dom/nfc/gonk/Nfc.js             | 21 +++++++--------------
 dom/nfc/gonk/nfc_consts.js      |  4 ++--
 dom/nfc/nsINfcContentHelper.idl |  4 ++--
 dom/nfc/nsNfc.js                |  2 +-
 5 files changed, 15 insertions(+), 21 deletions(-)