Add code back to change the status of WebBluetooth chooser once discovery is complete

Add code back to change the status of WebBluetooth chooser once discovery is complete

Some context:
https://codereview.chromium.org/1653533002
added code to ItemChooserDialog to notify it that the discovery is complete
and no new devices will be added. It also adds a new string to show when
the discovery is complete.

However,
https://codereview.chromium.org/1739523002
accidentally removed this feature.

This CL added this feature back.

BUG=580346
Committed: https://crrev.com/69820f8d4217aaa02cf0cd928a3d8797d7ac7b0a
Cr-Commit-Position: refs/heads/master@{#407668}

[juncai, 2016-07-23 01:02:17]

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

[commit-bot: I haz the power, 2016-07-23 01:02:37]

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, 2016-07-23 01:54:57]

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

[commit-bot: I haz the power, 2016-07-23 01:54:58]

Dry run: This issue passed the CQ dry run.

[juncai, 2016-07-23 02:03:44]

juncai@chromium.org changed reviewers:
+ tedchoc@chromium.org

[juncai, 2016-07-23 02:03:45]

Please take a look.

[Ted C, 2016-07-26 00:05:22]

lgtm

[juncai, 2016-07-26 00:25:43]

The CQ bit was checked by juncai@chromium.org

[commit-bot: I haz the power, 2016-07-26 00:26:17]

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, 2016-07-26 01:13:59]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-26 01:16:16]

Description was changed from

==========
Add code back to change the status of WebBluetooth chooser once discovery is
complete

Some context:
https://codereview.chromium.org/1653533002
added code to ItemChooserDialog to notify it that the discovery is complete
and no new devices will be added. It also adds a new string to show when
the discovery is complete.

However,
https://codereview.chromium.org/1739523002
accidentally removed this feature.

This CL added this feature back.

BUG=580346
==========

to

==========
Add code back to change the status of WebBluetooth chooser once discovery is
complete

Some context:
https://codereview.chromium.org/1653533002
added code to ItemChooserDialog to notify it that the discovery is complete
and no new devices will be added. It also adds a new string to show when
the discovery is complete.

However,
https://codereview.chromium.org/1739523002
accidentally removed this feature.

This CL added this feature back.

BUG=580346

Committed: https://crrev.com/69820f8d4217aaa02cf0cd928a3d8797d7ac7b0a
Cr-Commit-Position: refs/heads/master@{#407668}
==========

[commit-bot: I haz the power, 2016-07-26 01:16:17]

Patchset 1 (id:??) landed as
https://crrev.com/69820f8d4217aaa02cf0cd928a3d8797d7ac7b0a
Cr-Commit-Position: refs/heads/master@{#407668}