The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bea027213dfaaf89b487db43c7cf3da897bd11fa

commit bea027213dfaaf89b487db43c7cf3da897bd11fa
Author: Jun Choi <hongjunchoi@chromium.org>
Date: Fri Jun 15 02:17:54 2018

Implement FidoCableHandshakeHandler

Implement Cable handshake protocol client logic that dispatches control
message to the authenticator and validates incoming control messages from
connected authenticator. Handshake message sent to and received from the
authenticator should together be used to construct a session key with
which the FidoCableDevice use to encrypt/decrypt incoming and outgoing
messages.

Bug:  849307 
Change-Id: I818792c7234e039e43de8425ee8f7a30610073a0
Reviewed-on: https://chromium-review.googlesource.com/1089327
Commit-Queue: Jun Choi <hongjunchoi@chromium.org>
Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567518}
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/BUILD.gn
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/BUILD.gn
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_ble_frames.cc
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_ble_frames.h
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_cable_device.cc
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_cable_device.h
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_cable_device_unittest.cc
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_cable_discovery.cc
[add] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_cable_handshake_handler.cc
[add] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_cable_handshake_handler.h
[add] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_cable_handshake_handler_fuzzer.cc
[add] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_cable_handshake_handler_unittest.cc
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_constants.cc
[modify] https://crrev.com/bea027213dfaaf89b487db43c7cf3da897bd11fa/device/fido/fido_constants.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f96166b9cb09803eb31b0ba09f6fad85d67b183f

commit f96166b9cb09803eb31b0ba09f6fad85d67b183f
Author: Jun Choi <hongjunchoi@chromium.org>
Date: Tue Jun 19 04:06:37 2018

Add handshake protocol to Cable discovery

After connecting to Cable authenticator using advertisement/scanning,
Cable protocol requires one more round trip of BLE control messages to
be sent to establish shared secret key for encryption. Add this
handshake protocol to FidoCableDiscovery.

Bug:  849307 
Change-Id: I388fa43dae60e97e027dafa1f9f430a2569ca981
Reviewed-on: https://chromium-review.googlesource.com/1089794
Commit-Queue: Jun Choi <hongjunchoi@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#568334}
[modify] https://crrev.com/f96166b9cb09803eb31b0ba09f6fad85d67b183f/content/browser/webauth/authenticator_type_converters.cc
[modify] https://crrev.com/f96166b9cb09803eb31b0ba09f6fad85d67b183f/device/fido/fido_cable_device.cc
[modify] https://crrev.com/f96166b9cb09803eb31b0ba09f6fad85d67b183f/device/fido/fido_cable_device_unittest.cc
[modify] https://crrev.com/f96166b9cb09803eb31b0ba09f6fad85d67b183f/device/fido/fido_cable_discovery.cc
[modify] https://crrev.com/f96166b9cb09803eb31b0ba09f6fad85d67b183f/device/fido/fido_cable_discovery.h
[modify] https://crrev.com/f96166b9cb09803eb31b0ba09f6fad85d67b183f/device/fido/fido_cable_discovery_unittest.cc
[modify] https://crrev.com/f96166b9cb09803eb31b0ba09f6fad85d67b183f/device/fido/fido_cable_handshake_handler.h