commit 4076785af1b5ff3207dc841d1283719bc3e3df4a
author kinaba <kinaba@chromium.org> Tue Mar 21 01:32:08 2017
committer Commit bot <commit-bot@chromium.org> Tue Mar 21 01:32:08 2017
tree 9cd01384131490164e603a40289758c905c8cbc5
parent 08f54ecc76964badb626b2426b6f01f46cac7717

cryptohome: Add dbus method and signal name for encryption migration.

To Chromium, this adds

  HomedirMethods::MigrateToExt4Crypto(const Identification& id,
                                      const Authorization& auth,
                                      const Callback& callback);

that requests Cryptohomed to do the migration (for the |id|
and |auth| combination containing the same data that are passed
to MountEx), and

  CryptohomeClient::SetExt4CryptoMigrationProgressHandler(
      const base::Calback<void(uint64_t, uint64_t)>&);

for listening to a periodic progress status update.

Depends on the constants definition in
https://chromium-review.googlesource.com/c/454576/

BUG=699445

Review-Url: https://codereview.chromium.org/2748743004
Cr-Commit-Position: refs/heads/master@{#458268}