GitLab

Move all encoding/decoding/request specific logic in U2fDevice interface
to U2fRequest interface.

Bug: 810229
Change-Id: I62c721fcfe5be2c3efc1bfd87920ef020ad60198
Reviewed-on: https://chromium-review.googlesource.com/927105
Commit-Queue: Jun Choi <hongjunchoi@chromium.org>
Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543394}