Fix fast/dom/shadow/tab-order-iframe-and-shadow.html to finish properly

Fix fast/dom/shadow/tab-order-iframe-and-shadow.html to finish properly

The test has misused log() where debug() should be used.
The test itself has been okay, only the finshed message had this
problem.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=196475

[kochi, 2015-06-04 05:15:22]

kochi@chromium.org changed reviewers:
+ hayato@chromium.org

[kochi, 2015-06-04 05:15:32]

PTAL

[kochi, 2015-06-04 05:15:40]

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

[commit-bot: I haz the power, 2015-06-04 05:15:53]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154883006/1

[commit-bot: I haz the power, 2015-06-04 06:20:48]

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

[commit-bot: I haz the power, 2015-06-04 06:20:49]

Dry run: This issue passed the CQ dry run.

[hayato, 2015-06-04 07:33:02]

lgtm

[kochi, 2015-06-04 07:34:03]

The CQ bit was checked by kochi@chromium.org

[commit-bot: I haz the power, 2015-06-04 07:35:00]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1154883006/1

[commit-bot: I haz the power, 2015-06-04 07:39:01]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=196475