Delete backspace-for-back RuntimeFeature.

Delete backspace-for-back RuntimeFeature.

This feature has been disabled in http://crrev.com/386433 more than a
year ago.  If any user still is using this RuntimeFeature for their own
convenience, they can install this extension instead:
https://chrome.google.com/webstore/detail/go-back-with-backspace/eekailopagacbcdloonjhbiecobagjci

BUG=734285
Review-Url: https://codereview.chromium.org/2947523002
Cr-Commit-Position: refs/heads/master@{#480571}
Committed: https://chromium.googlesource.com/chromium/src/+/1ac47ffd83dc658c6daff5c4c68c30e04c4cadce

[aelias_OOO_until_Jul13, 2017-06-17 01:39:55]

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

[commit-bot: I haz the power, 2017-06-17 01:40:24]

Dry run: CQ is trying da patch.

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

[aelias_OOO_until_Jul13, 2017-06-17 01:42:47]

aelias@chromium.org changed reviewers:
+ tkent@chromium.org

[aelias_OOO_until_Jul13, 2017-06-17 01:42:55]

Hi tkent@, PTAL.

[aelias_OOO_until_Jul13, 2017-06-17 02:53:12]

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

[commit-bot: I haz the power, 2017-06-17 02:53:18]

Dry run: CQ is trying da patch.

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

[aelias_OOO_until_Jul13, 2017-06-17 03:36:55]

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

[commit-bot: I haz the power, 2017-06-17 03:37:01]

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, 2017-06-17 05:37:58]

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

[commit-bot: I haz the power, 2017-06-17 05:37:59]

Dry run: This issue passed the CQ dry run.

[tkent, 2017-06-18 23:27:27]

lgtm

[aelias_OOO_until_Jul13, 2017-06-19 16:55:05]

The CQ bit was checked by aelias@chromium.org

[commit-bot: I haz the power, 2017-06-19 16:55:14]

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, 2017-06-19 21:00:10]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1497891305259200,
"parent_rev": "3080a8acc349a8e2b0e2f895553826c6852988ad", "commit_rev":
"1ac47ffd83dc658c6daff5c4c68c30e04c4cadce"}

[commit-bot: I haz the power, 2017-06-19 21:00:26]

Description was changed from

==========
Delete backspace-for-back RuntimeFeature.

This feature has been disabled in http://crrev.com/386433 more than a
year ago.  If any user still is using this RuntimeFeature for their own
convenience, they can install this extension instead:
https://chrome.google.com/webstore/detail/go-back-with-backspace/eekailopagac...

BUG=734285
==========

to

==========
Delete backspace-for-back RuntimeFeature.

This feature has been disabled in http://crrev.com/386433 more than a
year ago.  If any user still is using this RuntimeFeature for their own
convenience, they can install this extension instead:
https://chrome.google.com/webstore/detail/go-back-with-backspace/eekailopagac...

BUG=734285

Review-Url: https://codereview.chromium.org/2947523002
Cr-Commit-Position: refs/heads/master@{#480571}
Committed:
https://chromium.googlesource.com/chromium/src/+/1ac47ffd83dc658c6daff5c4c68c...
==========

[commit-bot: I haz the power, 2017-06-19 21:00:27]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/chromium/src/+/1ac47ffd83dc658c6daff5c4c68c...