Rename class EditCommandComposition to UndoStep

Rename class EditCommandComposition to UndoStep

This patch renames class EditCommandComposition to UndoStep to better
match is usage. Follow up patches will clean up remaining names.

BUG=682129
TEST=n/a; no behavior change

Review-Url: https://codereview.chromium.org/2642663002
Cr-Commit-Position: refs/heads/master@{#444317}
Committed: https://chromium.googlesource.com/chromium/src/+/5e5d50d1fe1c2322b6b2dc07681fd5804de80346

[Xiaocheng, 2017-01-18 07:23:41]

The CQ bit was checked by xiaochengh@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-01-18 07:23:54]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Xiaocheng, 2017-01-18 07:25:59]

The CQ bit was checked by xiaochengh@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-01-18 07:26:13]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Xiaocheng, 2017-01-18 08:42:37]

xiaochengh@chromium.org changed reviewers:
+ yosin@chromium.org

[Xiaocheng, 2017-01-18 08:42:38]

PTAL.

[yosin_UTC9, 2017-01-18 08:52:11]

lgtm

Excellent!

You make my life easier!

[Xiaocheng, 2017-01-18 09:02:21]

The CQ bit was unchecked by xiaochengh@chromium.org

[Xiaocheng, 2017-01-18 09:02:28]

The CQ bit was checked by xiaochengh@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-01-18 09:02:38]

Dry run: 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, 2017-01-18 09:05:35]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-01-18 09:05:36]

Dry run: This issue passed the CQ dry run.

[Xiaocheng, 2017-01-18 09:39:39]

The CQ bit was checked by xiaochengh@chromium.org

[commit-bot: I haz the power, 2017-01-18 09:40:08]

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, 2017-01-18 09:45:12]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1484732379459450,
"parent_rev": "23131d3fdb72e5e1f8ca82b76171bd99a1774c30", "commit_rev":
"5e5d50d1fe1c2322b6b2dc07681fd5804de80346"}

[commit-bot: I haz the power, 2017-01-18 09:45:41]

Description was changed from

==========
Rename class EditCommandComposition to UndoStep

This patch renames class EditCommandComposition to UndoStep to better
match is usage. Follow up patches will clean up remaining names.

BUG=682129
TEST=n/a; no behavior change
==========

to

==========
Rename class EditCommandComposition to UndoStep

This patch renames class EditCommandComposition to UndoStep to better
match is usage. Follow up patches will clean up remaining names.

BUG=682129
TEST=n/a; no behavior change

Review-Url: https://codereview.chromium.org/2642663002
Cr-Commit-Position: refs/heads/master@{#444317}
Committed:
https://chromium.googlesource.com/chromium/src/+/5e5d50d1fe1c2322b6b2dc07681f...
==========

[commit-bot: I haz the power, 2017-01-18 09:45:42]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/5e5d50d1fe1c2322b6b2dc07681f...