Fixed shutdown of LoginUtilsTest.

Fixed shutdown of LoginUtilsTest.

The shutdown of ProfileIOData started triggering a DCHECK on chrome_http_user_agent_settings.cc. Fixed this and similar issues by having a fake IO loop always available during the test.

This is a reland of https://codereview.chromium.org/11358160/ after fixing the Thread crash at shutdown on debug builds.

BUG=158839
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=167915

[Joao da Silva, 2012-11-15 11:38:05]

Relanding after fixing the crash on debug builds (see delta from patch set 2 to
1 for the fix).

@nkostylev, @jochen: can this have another stamp please :-)

@wez: the crash is only triggered on builds with NDEBUG undefined, but there is
no linux_chromeos bot with that :-/

[Nikita (slow), 2012-11-15 11:47:58]

lgtm

[Nikita (slow), 2012-11-15 11:48:37]

I prefer reusing existing codereview for relanding changes.

[jochen (gone - plz use gerrit), 2012-11-15 11:58:15]

lgtm

[commit-bot: I haz the power, 2012-11-15 13:26:11]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/joaodasilva@chromium.org/11280007/2001

[commit-bot: I haz the power, 2012-11-15 14:27:39]

Change committed as 167915

[Wez, 2012-11-15 17:25:09]

Please don't re-land twice from the same code review; see the thread on
chromium-dev@ on the subject. :)
On 15 Nov 2012 03:48, <nkostylev@chromium.org> wrote:

> I prefer reusing existing codereview for relanding changes.
>
>
https://codereview.chromium.**org/11280007/<https://codereview.chromium.org/1...
>