Convert Site Isolation Win layout tests to run with --site-per-process.

Convert Site Isolation Win layout tests to run with --site-per-process.

Now that --isolate-extensions is on by default on trunk, there is no
benefit in running the layout tests on the Site Isolation Win bot in
that mode anymore.  Convert it back to run tests with
--site-per-process.

BUG=417518, 477150
Committed: https://chromium.googlesource.com/chromium/tools/build/+/1b0324b4e3dfad7455edaf416134848245331167

[alexmos, 2016-08-31 23:39:23]

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

[commit-bot: I haz the power, 2016-08-31 23:39:34]

Dry run: 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, 2016-08-31 23:39:36]

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

[commit-bot: I haz the power, 2016-08-31 23:39:37]

Dry run: No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
Committers are members of the group "project-infra-committers".
Note that this has nothing to do with OWNERS files.

[alexmos, 2016-09-01 00:23:19]

alexmos@chromium.org changed reviewers:
+ dpranke@chromium.org

[alexmos, 2016-09-01 00:23:19]

Dirk, can you please take a look?  This complements the  chromium.fyi.json
change in https://codereview.chromium.org/2295843004/

[Dirk Pranke, 2016-09-01 03:21:36]

lgtm

[alexmos, 2016-09-07 16:47:41]

The CQ bit was checked by alexmos@chromium.org

[commit-bot: I haz the power, 2016-09-07 16:47:43]

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, 2016-09-07 16:51:20]

Description was changed from

==========
Convert Site Isolation Win layout tests to run with --site-per-process.

Now that --isolate-extensions is on by default on trunk, there is no
benefit in running the layout tests on the Site Isolation Win bot in
that mode anymore.  Convert it back to run tests with
--site-per-process.

BUG=417518, 477150
==========

to

==========
Convert Site Isolation Win layout tests to run with --site-per-process.

Now that --isolate-extensions is on by default on trunk, there is no
benefit in running the layout tests on the Site Isolation Win bot in
that mode anymore.  Convert it back to run tests with
--site-per-process.

BUG=417518, 477150

Committed:
https://chromium.googlesource.com/chromium/tools/build/+/1b0324b4e3dfad7455ed...
==========

[commit-bot: I haz the power, 2016-09-07 16:51:21]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/tools/build/+/1b0324b4e3dfad7455ed...