Change terms URL to chrome://credits.

Change terms URL to chrome://credits.

The existing terms seen at chrome://terms have a link to
http://code.google.com/chromium/terms.html and various translations
of it. This link target no longer exists as it was deleted due to
never being updated. As a result, replace it with a link to
chrome://credits, which is at least up to date and exists.

BUG=chromium:91111
Committed: https://crrev.com/c91b3c1cad85c7fcfa8caf5892de80cea904cd2a
Cr-Commit-Position: refs/heads/master@{#359034}

[bungeman-chromium, 2015-11-10 16:08:51]

The CQ bit was checked by bungeman@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-11-10 16:09:37]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1418453013/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1418453013/1

[commit-bot: I haz the power, 2015-11-10 16:22:03]

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

[commit-bot: I haz the power, 2015-11-10 16:22:04]

Dry run: This issue passed the CQ dry run.

[bungeman-chromium, 2015-11-10 16:26:21]

bungeman@chromium.org changed reviewers:
+ cpu@chromium.org

[bungeman-chromium, 2015-11-10 16:26:22]

This updates all of the terms_* except terms_sw.html which doesn't have any link
in the appropriate location. I don't know the language so I'm not going to be
able to add it myself.

[bungeman-chromium, 2015-11-10 21:55:32]

bungeman@chromium.org changed reviewers:
+ grt@chromium.org

[bungeman-chromium, 2015-11-10 22:06:27]

bungeman@chromium.org changed reviewers:
+ laforge@chromium.org

[bungeman-chromium, 2015-11-10 22:06:27]

laforge: it looks like you modified some of this some time in the distant past,
and may know more about these files than most.

[cpu_(ooo_6.6-7.5), 2015-11-10 22:20:18]

lgtm

[laforge, 2015-11-10 22:46:57]

On 2015/11/10 22:20:18, cpu wrote:
> lgtm

lgtm

[bungeman-chromium, 2015-11-11 03:32:18]

The CQ bit was checked by bungeman@chromium.org

[commit-bot: I haz the power, 2015-11-11 03:34:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1418453013/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1418453013/1

[commit-bot: I haz the power, 2015-11-11 03:40:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-11 03:41:37]

Patchset 1 (id:??) landed as
https://crrev.com/c91b3c1cad85c7fcfa8caf5892de80cea904cd2a
Cr-Commit-Position: refs/heads/master@{#359034}