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The spec changes:
https://github.com/w3c/web-nfc/pull/361
https://github.com/w3c/web-nfc/pull/495
https://github.com/w3c/web-nfc/pull/536

BUG=520391

Change-Id: I00a363aba07d1f9f2f8e40212dca7650e26047a2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2038492
Commit-Queue: Leon Han <leon.han@intel.com>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Reviewed-by: François Beaufort <beaufort.francois@gmail.com>
Cr-Commit-Position: refs/heads/master@{#743864}