cros: Enable Ext4 migration in ARC kiosk mode.

cros: Enable Ext4 dircrypto migration for ARC kiosk mode.

When old encryption is detected in ARC kiosk session, we should migrate
the encryption. As it is for kiosk situation, we skip all checks
(user confirmation, battery, and space) and start migration immediately.
This CL also adds UMA stats for the kiosk migration.

BUG=730966
TEST=manually tested by following https://docs.google.com/document/d/1JS6wtZ6VxKDN0SvphuvvydixPkiTwlxzJ17DZUsMEzM/edit#

Review-Url: https://codereview.chromium.org/2944553003
Cr-Commit-Position: refs/heads/master@{#482856}
Committed: https://chromium.googlesource.com/chromium/src/+/9a07fb43185f855ed04446008efebf80564ef3c9

[fukino, 2017-06-16 04:05:53]

Description was changed from

==========
cros: Enable Ext4 migration in ARC kiosk mode.

BUG=
==========

to

==========
cros: Enable Ext4 migration in ARC kiosk mode.

BUG=
==========

[fukino, 2017-06-16 10:16:41]

Description was changed from

==========
cros: Enable Ext4 migration in ARC kiosk mode.

BUG=
==========

to

==========
cros: Enable Ext4 dircrypto migration for ARC kiosk mode.

When old encryption is detected in ARC kiosk session, we should migrate
the encryption. As it is for kiosk situation, we skip all checks
(user confirmation, battery, and space) and start migration immediately.
This CL also adds UMA stats for the kiosk migration.

BUG=730966
TEST=manually tested by following
https://docs.google.com/document/d/1JS6wtZ6VxKDN0SvphuvvydixPkiTwlxzJ17DZUsME...
==========

[fukino, 2017-06-16 10:18:00]

fukino@chromium.org changed reviewers:
+ isherman@chromium.org, xiyuan@chromium.org

[fukino, 2017-06-16 10:18:00]

xiyuan@, could you take a look?
isherman@, could you take a look at histograms?
Thanks!

[xiyuan, 2017-06-16 17:39:56]

lgtm

[Ilya Sherman, 2017-06-16 21:08:43]

On 2017/06/16 10:18:00, fukino wrote:
> isherman@, could you take a look at histograms?

You don't need my review for simple additions to enums.xml =)

[fukino, 2017-06-19 02:22:28]

Thank you for the review!
I'll commit this after https://chromium-review.googlesource.com/c/527754/ lands.

[Ilya Sherman, 2017-06-22 16:30:42]

isherman@chromium.org changed reviewers:
- isherman@chromium.org

[fukino, 2017-06-28 01:24:29]

The CQ bit was checked by fukino@chromium.org

[commit-bot: I haz the power, 2017-06-28 01:24:55]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-06-28 02:34:21]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1498613069629630,
"parent_rev": "63f156d9c2dfd6a04d1a49a58a1c0178b1e3f6e1", "commit_rev":
"9a07fb43185f855ed04446008efebf80564ef3c9"}

[commit-bot: I haz the power, 2017-06-28 02:34:36]

Description was changed from

==========
cros: Enable Ext4 dircrypto migration for ARC kiosk mode.

When old encryption is detected in ARC kiosk session, we should migrate
the encryption. As it is for kiosk situation, we skip all checks
(user confirmation, battery, and space) and start migration immediately.
This CL also adds UMA stats for the kiosk migration.

BUG=730966
TEST=manually tested by following
https://docs.google.com/document/d/1JS6wtZ6VxKDN0SvphuvvydixPkiTwlxzJ17DZUsME...
==========

to

==========
cros: Enable Ext4 dircrypto migration for ARC kiosk mode.

When old encryption is detected in ARC kiosk session, we should migrate
the encryption. As it is for kiosk situation, we skip all checks
(user confirmation, battery, and space) and start migration immediately.
This CL also adds UMA stats for the kiosk migration.

BUG=730966
TEST=manually tested by following
https://docs.google.com/document/d/1JS6wtZ6VxKDN0SvphuvvydixPkiTwlxzJ17DZUsME...

Review-Url: https://codereview.chromium.org/2944553003
Cr-Commit-Position: refs/heads/master@{#482856}
Committed:
https://chromium.googlesource.com/chromium/src/+/9a07fb43185f855ed04446008efe...
==========

[commit-bot: I haz the power, 2017-06-28 02:34:38]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/9a07fb43185f855ed04446008efe...