Internals.selectColorInColorChooser(): type check element argument.

Internals.selectColorInColorChooser(): type check element argument.

Avoid trouble and verify that the incoming element is indeed an Element.

R=keishi@chromium.org
BUG=395970
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=178662

[sof, 2014-07-22 10:14:39]

Please take a look.

[tkent, 2014-07-22 11:07:00]

+keishi

[keishi, 2014-07-22 11:10:32]

lgtm

[sof, 2014-07-22 11:19:18]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2014-07-22 11:19:56]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/sigbjornf@opera.com/409833003/40001

[commit-bot: I haz the power, 2014-07-22 12:13:38]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/18238)
  win_gpu_triggered_tests on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/win_gpu_triggered...)

[commit-bot: I haz the power, 2014-07-22 13:17:31]

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

[commit-bot: I haz the power, 2014-07-22 13:17:32]

Try jobs failed on following builders:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/18256)

[sof, 2014-07-22 13:27:51]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2014-07-22 13:28:56]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/sigbjornf@opera.com/409833003/40001

[commit-bot: I haz the power, 2014-07-22 13:45:54]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/18286)

[commit-bot: I haz the power, 2014-07-22 14:50:44]

Change committed as 178662