tree eb2af6c9972bdb65eb69ffa2a0aedd01a037850e
parent e08c7c6a8bbe0326e5f9c067863a3256c8e5562b
author Vitaly Buka <vitalybuka@google.com> 1450069486 -0800
committer Vitaly Buka <vitalybuka@google.com> 1450134602 +0000

Add ClaimRootClientAuthToken and ConfirmRootClientAuthToken

Claim* call will create temporarily secret and set that as primary after
Confirm* is called.

Local client needs to be able to claim control of unclaimed device.
Device should be claimed no more than once, so if Claim was called and
client didn't not get response, we will have locked account. Confirm* is
used as that confirmation.

BUG=25766815

Change-Id: Id744f98788abe70a42b32c4a6d796e7ff74c3936
Reviewed-on: https://weave-review.googlesource.com/1947
Reviewed-by: Alex Vakulenko <avakulenko@google.com>