Prevent a crash in the first run search engine selector.

Reland 112770, but with test disabled.

Prevent a crash in the first run search engine selector.

It is possible to try and close the window now before the TemplateURLService is loaded. In this case we will not have a fallback search engine to select by default. So we will just reject attempts to close the window in this circumstance until it is loaded and a fallback choice has been set. It should be an edge case.

http://crbug.com/106078
TEST=unit test

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=113149

[sky, 2011-12-01 22:55:16]

LGTM

[commit-bot: I haz the power, 2011-12-02 17:27:35]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ben@chromium.org/8771018/3016

[commit-bot: I haz the power, 2011-12-02 19:36:42]

Try job failure for 8771018-3016 (retry) on win_rel for step "browser_tests".
It's a second try, previously, step "browser_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2011-12-02 23:08:24]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ben@chromium.org/8771018/8001

[commit-bot: I haz the power, 2011-12-03 03:52:01]

The commit queue went berserk retrying too often for a
seemingly flaky test. Builder is win_rel, revision is 112858, job name
was 8771018-8001 (previous was lost) (previous was lost) (retry) (retry).

[commit-bot: I haz the power, 2011-12-03 04:59:45]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ben@chromium.org/8771018/8001

[commit-bot: I haz the power, 2011-12-03 06:59:52]

Try job failure for 8771018-8001 (retry) on win_rel for step "browser_tests".
It's a second try, previously, step "browser_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2011-12-06 03:25:43]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ben@chromium.org/8771018/17001

[commit-bot: I haz the power, 2011-12-06 07:34:37]

Change committed as 113149