Update UsbChooserController unit test

Update UsbChooserController unit test

This CL added a MockUsbChooserView to test the UsbChooserController.

BUG=637402
Committed: https://crrev.com/3c1b74d2cec9fc150eef16be9ddfc122e656bba0
Cr-Commit-Position: refs/heads/master@{#414915}

[juncai, 2016-08-26 21:38:46]

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

[commit-bot: I haz the power, 2016-08-26 21:39:33]

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

[juncai, 2016-08-26 21:41:06]

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

[juncai, 2016-08-26 21:41:07]

Please take a look.

[Reilly Grant (use Gerrit), 2016-08-26 21:45:41]

lgtm

[commit-bot: I haz the power, 2016-08-26 22:25:07]

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

[commit-bot: I haz the power, 2016-08-26 22:25:07]

Dry run: This issue passed the CQ dry run.

[juncai, 2016-08-26 23:59:16]

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

[commit-bot: I haz the power, 2016-08-27 00:00:00]

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, 2016-08-27 00:56:17]

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

[commit-bot: I haz the power, 2016-08-27 00:56:17]

Dry run: This issue passed the CQ dry run.

[juncai, 2016-08-27 02:06:59]

The CQ bit was checked by juncai@chromium.org

[juncai, 2016-08-27 02:07:00]

The patchset sent to the CQ was uploaded after l-g-t-m from reillyg@chromium.org
Link to the patchset: https://codereview.chromium.org/2284033002/#ps20001
(title: "removed defaulted destructor")

[commit-bot: I haz the power, 2016-08-27 02:07:20]

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, 2016-08-27 11:00:42]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-08-27 11:04:18]

Description was changed from

==========
Update UsbChooserController unit test

This CL added a MockUsbChooserView to test the UsbChooserController.

BUG=637402
==========

to

==========
Update UsbChooserController unit test

This CL added a MockUsbChooserView to test the UsbChooserController.

BUG=637402

Committed: https://crrev.com/3c1b74d2cec9fc150eef16be9ddfc122e656bba0
Cr-Commit-Position: refs/heads/master@{#414915}
==========

[commit-bot: I haz the power, 2016-08-27 11:04:19]

Patchset 2 (id:??) landed as
https://crrev.com/3c1b74d2cec9fc150eef16be9ddfc122e656bba0
Cr-Commit-Position: refs/heads/master@{#414915}