cros: Remove user directory when encryption migration fails.
When the migration UI is notified by cryptohome that cryptohome gets unexpected
errors during migration and it gives up migration, we should remove the
user's cryptohome to make sure that the user will be able to log in to
the Desktop next time.
After the user's cryptohome is removed, we get password verification errors
on the existing user pod three times.
It seems an independent issue, so I filed crbug.com/715474 and will look into separately.
BUG=713556
TEST=manually tested by forcing cryptohome fail during migration and confirming the cryptohome is gone.
Review-Url: https://codereview.chromium.org/2838303003
Cr-Commit-Position: refs/heads/master@{#467608}
2 files changed
