Introduce a CookieSettings for incognito mode

Introduce a CookieSettings for incognito mode

Each profile (regular and incognito) has its own HostContentSettingsMap. This
is modified for example in ContentSettingSingleRadioGroup and also presented in
the content settings exceptions in chrome://settings. However, the values of
the HCSM are not reflected in the CookieSettings of an incognito session
because a single CookieSettings instance is shared between regular and
incognito mode. This CL fixes that.

BUG=432398
Committed: https://crrev.com/78fa7c1cf6b45a90d63547e6e1c04dab7d43009e
Cr-Commit-Position: refs/heads/master@{#315034}

[battre, 2015-02-04 08:47:00]

battre@chromium.org changed reviewers:
+ markusheintz@chromium.org

[battre, 2015-02-04 08:47:00]

Hi Markus,

could you please review this?

Thanks,
Dominic

[battre, 2015-02-06 10:47:55]

battre@chromium.org changed reviewers:
+ bauerb@chromium.org

[battre, 2015-02-06 10:47:55]

Bernhard, could you take a look at this? Markus is on vacation.

Thanks,
Dominic

[Bernhard Bauer, 2015-02-06 13:40:01]

LGTM

[battre, 2015-02-06 14:13:52]

The CQ bit was checked by battre@chromium.org

[commit-bot: I haz the power, 2015-02-06 14:14:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/900803002/1

[commit-bot: I haz the power, 2015-02-06 14:58:23]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-06 14:59:34]

Patchset 1 (id:??) landed as
https://crrev.com/78fa7c1cf6b45a90d63547e6e1c04dab7d43009e
Cr-Commit-Position: refs/heads/master@{#315034}