DevTools: bring developer tools window to front when panel gets selected

DevTools: bring developer tools window to front when panel gets selected

This patch is a hackish way to bring developer tools front-end to front
whenever Toolbox revealer asks to reveal something.

BUG=399259
R=pfeldman

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=180202

[pfeldman, 2014-08-13 14:43:03]

lgtm

[lushnikov, 2014-08-13 14:51:06]

The CQ bit was checked by lushnikov@chromium.org

[commit-bot: I haz the power, 2014-08-13 14:51:32]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/lushnikov@chromium.org/468193002/1

[commit-bot: I haz the power, 2014-08-13 16:04:03]

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/22567)

[commit-bot: I haz the power, 2014-08-13 16:50:10]

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

[commit-bot: I haz the power, 2014-08-13 16:50:11]

Try jobs failed on following builders:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/22584)

[lushnikov, 2014-08-13 18:16:59]

The CQ bit was checked by lushnikov@chromium.org

[commit-bot: I haz the power, 2014-08-13 18:17:35]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/lushnikov@chromium.org/468193002/1

[commit-bot: I haz the power, 2014-08-13 19:45:10]

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/22603)

[commit-bot: I haz the power, 2014-08-13 20:15:38]

Committed patchset #1 (1) as 180202