Prevent crash in createInstanceTimesFromSyncbase

Prevent crash in createInstanceTimesFromSyncbase

This patch prevents a crash in createInstanceTimesFromSyncbase where
a non-finite time would assert. This case is valid and we've added a test
to prove it.

This patch is a merge of http://trac.webkit.org/changeset/162459 by
Tamas Gergely <tgergely.u-szeged@partner.samsung.com>;.

BUG=231531
NOTRY=true

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=165498

[Stephen Chennney, 2014-01-21 22:15:51]

Seems fine to me. LGTM

[pdr., 2014-01-21 22:17:14]

On 2014/01/21 22:15:51, Stephen Chenney wrote:
> Seems fine to me. LGTM

Thanks for the quick review. I also commented over on the WebKit bug about
adding an additional test that's in this patch but not in the WebKit one.

Off to the CQ.

[commit-bot: I haz the power, 2014-01-21 22:17:42]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pdr@chromium.org/144333002/1

[commit-bot: I haz the power, 2014-01-21 23:07:31]

Retried try job too often on linux_blink_rel for step(s) webkit_unit_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_blin...

[commit-bot: I haz the power, 2014-01-22 01:00:26]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pdr@chromium.org/144333002/1

[commit-bot: I haz the power, 2014-01-22 01:05:27]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pdr@chromium.org/144333002/1

[commit-bot: I haz the power, 2014-01-22 01:06:13]

Change committed as 165498