Rework EventSource tests for better Worker test coverage.

Rework EventSource tests for better Worker test coverage.

Follow on from https://codereview.chromium.org/340363003/ and recast
the remaining Document-agnostic EventSource tests to also be usable from
a Worker context.

R=
BUG=386520
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=176665

[sof, 2014-06-20 08:09:41]

Please take a look.

Second part covering the remaining EventSource tests - if you want this split up
further, please let me know. The individual tests have been recast to use
js-test.js predicates + moved into separate .js files so as to enable Worker
usage.

(Anyone else that is focused on matters EventSource and/or workers that it'd be
good to include for changes in this area? )

[abarth-chromium, 2014-06-20 14:53:13]

rslgtm

[commit-bot: I haz the power, 2014-06-20 14:53:51]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/sigbjornf@opera.com/347043002/1

[commit-bot: I haz the power, 2014-06-20 16:18:07]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_blink_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/1...)
  linux_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/1...)
  mac_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/mac_blink_rel/builds/12205)
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/12903)
  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, 2014-06-20 16:45:04]

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

[commit-bot: I haz the power, 2014-06-20 16:45:05]

Try jobs failed on following builders:
  linux_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/1...)

[sof, 2014-06-20 20:08:59]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2014-06-20 20:10:32]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/sigbjornf@opera.com/347043002/20001

[commit-bot: I haz the power, 2014-06-20 23:25:08]

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/12988)

[commit-bot: I haz the power, 2014-06-21 00:39:37]

Change committed as 176665