Clarify that SiteInstance::GetSiteURL is usually not accurate.

Clarify that SiteInstance::GetSiteURL is usually not accurate.

It is only useful for sites that require dedicated processes, or
in --site-per-process mode.

BUG=none
TEST=No behavior change.

Committed: https://crrev.com/11291923d4c938142d6fdd6653a33e2df8a2b06e
Cr-Commit-Position: refs/heads/master@{#402633}

[Charlie Reis, 2016-06-28 23:16:08]

creis@chromium.org changed reviewers:
+ nasko@chromium.org

[Charlie Reis, 2016-06-28 23:16:09]

Nasko, can you review this documentation update?  Jialiu reminded me that we
don't have any warnings about relying on GetSiteURL.

[nasko, 2016-06-28 23:34:46]

This has been long overdue, so thanks for clarifying it! LGTM

[Charlie Reis, 2016-06-28 23:37:02]

The CQ bit was checked by creis@chromium.org

[commit-bot: I haz the power, 2016-06-28 23:38:55]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-06-29 01:45:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-29 01:48:01]

Description was changed from

==========
Clarify that SiteInstance::GetSiteURL is usually not accurate.

It is only useful for sites that require dedicated processes, or
in --site-per-process mode.

BUG=none
TEST=No behavior change.
==========

to

==========
Clarify that SiteInstance::GetSiteURL is usually not accurate.

It is only useful for sites that require dedicated processes, or
in --site-per-process mode.

BUG=none
TEST=No behavior change.

Committed: https://crrev.com/11291923d4c938142d6fdd6653a33e2df8a2b06e
Cr-Commit-Position: refs/heads/master@{#402633}
==========

[commit-bot: I haz the power, 2016-06-29 01:48:02]

Patchset 1 (id:??) landed as
https://crrev.com/11291923d4c938142d6fdd6653a33e2df8a2b06e
Cr-Commit-Position: refs/heads/master@{#402633}