cros: Mount the existing eCryptfs vault to start migration.

cros: Mount the existing eCryptfs vault to start migration.

Before we call cryptohome's MigrateToDircrypto method, we need to mount
existing eCryptfs valut to start migration by calling MountEx method with
|to_migrate_from_ecryptfs| mount flag.

Additionally, this CL removes |auth| argument from MigrateToDircrypto method,
since it was removed from DBUS call in the latest cryptohome.
https://chromium-review.googlesource.com/#/c/472409/6/cryptohome/cryptohome.xml

BUG=711458
TBR=xiyuan@chromium.org,hashimoto@chromium.org

Review-Url: https://codereview.chromium.org/2818393002
Cr-Commit-Position: refs/heads/master@{#464945}
(cherry picked from commit d698c77f8ab3b0e0e61d3fe99bc5ec9c24f8c813)

Review-Url: https://codereview.chromium.org/2827203002 .
Cr-Commit-Position: refs/branch-heads/3071@{#77}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed: https://chromium.googlesource.com/chromium/src/+/268dd43e110778c23fbf94ecac3171664589b751

[fukino, 2017-04-20 03:06:59]

Description was changed from

==========
cros: Mount the existing eCryptfs vault to start migration.

Before we call cryptohome's MigrateToDircrypto method, we need to mount
existing eCryptfs valut to start migration by calling MountEx method with
|to_migrate_from_ecryptfs| mount flag.

Additionally, this CL removes |auth| argument from MigrateToDircrypto method,
since it was removed from DBUS call in the latest cryptohome.
https://chromium-review.googlesource.com/#/c/472409/6/cryptohome/cryptohome.xml

BUG=711458
TBR=xiyuan@chromium.org,hashimoto@chromium.org

Review-Url: https://codereview.chromium.org/2818393002
Cr-Commit-Position: refs/heads/master@{#464945}
(cherry picked from commit d698c77f8ab3b0e0e61d3fe99bc5ec9c24f8c813)
==========

to

==========
cros: Mount the existing eCryptfs vault to start migration.

Before we call cryptohome's MigrateToDircrypto method, we need to mount
existing eCryptfs valut to start migration by calling MountEx method with
|to_migrate_from_ecryptfs| mount flag.

Additionally, this CL removes |auth| argument from MigrateToDircrypto method,
since it was removed from DBUS call in the latest cryptohome.
https://chromium-review.googlesource.com/#/c/472409/6/cryptohome/cryptohome.xml

BUG=711458
TBR=xiyuan@chromium.org,hashimoto@chromium.org

Review-Url: https://codereview.chromium.org/2818393002
Cr-Commit-Position: refs/heads/master@{#464945}
(cherry picked from commit d698c77f8ab3b0e0e61d3fe99bc5ec9c24f8c813)

Review-Url: https://codereview.chromium.org/2827203002 .
Cr-Commit-Position: refs/branch-heads/3071@{#77}
Cr-Branched-From:
a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed:
https://chromium.googlesource.com/chromium/src/+/268dd43e110778c23fbf94ecac31...
==========

[fukino, 2017-04-20 03:07:00]

Committed patchset #1 (id:1) manually as
268dd43e110778c23fbf94ecac3171664589b751.