[Extensions] Remove the extension_action_redesign switch

[Extensions] Remove the extension_action_redesign switch

Remove the final use of the extension_action_redesign switch in the
extension action manifest handler, and remove the switch itself.

BUG=590321
Review-Url: https://codereview.chromium.org/2921473002
Cr-Commit-Position: refs/heads/master@{#476662}
Committed: https://chromium.googlesource.com/chromium/src/+/9e7b7c2e654e4764bdf3591437bc81efdea578cb

[Devlin, 2017-05-31 19:50:39]

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

[commit-bot: I haz the power, 2017-05-31 19:51:32]

Dry run: CQ is trying da patch.

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

[Devlin, 2017-05-31 21:46:55]

rdevlin.cronin@chromium.org changed reviewers:
+ finnur@chromium.org

[commit-bot: I haz the power, 2017-05-31 22:00:33]

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

[commit-bot: I haz the power, 2017-05-31 22:00:34]

Dry run: This issue passed the CQ dry run.

[Finnur, 2017-06-02 11:12:17]

LGTM. 

Congratulations! :)

[Devlin, 2017-06-02 14:35:04]

On 2017/06/02 11:12:17, Finnur wrote:
> LGTM. 
> 
> Congratulations! :)

Heh long overdue cleanup :)

[Devlin, 2017-06-02 14:35:29]

The CQ bit was checked by rdevlin.cronin@chromium.org

[commit-bot: I haz the power, 2017-06-02 14:36:06]

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, 2017-06-02 15:26:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1496414129450770, "parent_rev":
"582f3d53c92a020931828dc67e6a849db4f56f93", "commit_rev":
"9e7b7c2e654e4764bdf3591437bc81efdea578cb"}

[commit-bot: I haz the power, 2017-06-02 15:26:14]

Description was changed from

==========
[Extensions] Remove the extension_action_redesign switch

Remove the final use of the extension_action_redesign switch in the
extension action manifest handler, and remove the switch itself.

BUG=590321
==========

to

==========
[Extensions] Remove the extension_action_redesign switch

Remove the final use of the extension_action_redesign switch in the
extension action manifest handler, and remove the switch itself.

BUG=590321

Review-Url: https://codereview.chromium.org/2921473002
Cr-Commit-Position: refs/heads/master@{#476662}
Committed:
https://chromium.googlesource.com/chromium/src/+/9e7b7c2e654e4764bdf3591437bc...
==========

[commit-bot: I haz the power, 2017-06-02 15:26:15]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/9e7b7c2e654e4764bdf3591437bc...