am a926540d: Implement methods introduced in draft #5 NFC API.

Merge commit 'a926540d5455a973dd8ca19c00c108620d9c68c2' into gingerbread-plus-aosp

* commit 'a926540d5455a973dd8ca19c00c108620d9c68c2':
  Implement methods introduced in draft #5 NFC API.