Ensure JavaScript equality when serviceWorker.register resolves to an existing worker [3/3]

Ensure JavaScript equality when serviceWorker.register resolves to an existing worker [3/3]

Three-sided patch:
[1] Blink: https://codereview.chromium.org/409403002
[2] Chromium: https://codereview.chromium.org/412833002/
[3] Blink: test (THIS PATCH)

BUG=395928
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=178938

[nhiroki, 2014-07-24 02:15:02]

lgtm

[falken, 2014-07-25 12:48:14]

The CQ bit was checked by falken@chromium.org

[commit-bot: I haz the power, 2014-07-25 12:48:28]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/falken@chromium.org/411863003/1

[commit-bot: I haz the power, 2014-07-25 13:49:39]

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/18953)

[commit-bot: I haz the power, 2014-07-25 14:57:15]

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

[commit-bot: I haz the power, 2014-07-25 14:57:16]

Try jobs failed on following builders:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/18961)

[falken, 2014-07-25 15:21:17]

The CQ bit was checked by falken@chromium.org

[commit-bot: I haz the power, 2014-07-25 15:22:11]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/falken@chromium.org/411863003/1

[commit-bot: I haz the power, 2014-07-25 15:55:35]

Change committed as 178938