Allow multiple host pseudos in same compound.

Allow multiple host pseudos in same compound.

As part of optimizing away :host(-context) selectors which never may
match, we also skipped selectors with multiple :host(-context) pseudos
in the same compound.

Removed assert in findBestRuleSetAndAdd as that would now be required
to traverse the whole compound again to cover everything.

BUG=601585
Committed: https://crrev.com/fd7037ec2f171b5f917f90ece37ba20b4d8506ce
Cr-Commit-Position: refs/heads/master@{#387263}

[rune, 2016-04-11 12:42:07]

The CQ bit was checked by rune@opera.com to run a CQ dry run

[commit-bot: I haz the power, 2016-04-11 12:42:18]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1872343002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1872343002/1

[rune, 2016-04-11 12:43:10]

rune@opera.com changed reviewers:
+ timloh@chromium.org

[rune, 2016-04-11 12:43:10]

ptal

[commit-bot: I haz the power, 2016-04-11 15:02:32]

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

[commit-bot: I haz the power, 2016-04-11 15:02:33]

Dry run: This issue passed the CQ dry run.

[rune, 2016-04-13 16:10:33]

rune@opera.com changed reviewers:
+ esprehn@chromium.org

[Timothy Loh, 2016-04-14 05:41:04]

lgtm, but it'd be nice to test a few more combinations of
:host/:host()/:host-context().

[rune, 2016-04-14 07:34:30]

The CQ bit was checked by rune@opera.com

[rune, 2016-04-14 07:34:31]

The patchset sent to the CQ was uploaded after l-g-t-m from timloh@chromium.org
Link to the patchset: https://codereview.chromium.org/1872343002/#ps60001
(title: "... and a test with :host()")

[commit-bot: I haz the power, 2016-04-14 07:34:42]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1872343002/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1872343002/60001

[commit-bot: I haz the power, 2016-04-14 08:42:19]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2016-04-14 08:43:38]

Description was changed from

==========
Allow multiple host pseudos in same compound.

As part of optimizing away :host(-context) selectors which never may
match, we also skipped selectors with multiple :host(-context) pseudos
in the same compound.

Removed assert in findBestRuleSetAndAdd as that would now be required
to traverse the whole compound again to cover everything.

BUG=601585
==========

to

==========
Allow multiple host pseudos in same compound.

As part of optimizing away :host(-context) selectors which never may
match, we also skipped selectors with multiple :host(-context) pseudos
in the same compound.

Removed assert in findBestRuleSetAndAdd as that would now be required
to traverse the whole compound again to cover everything.

BUG=601585

Committed: https://crrev.com/fd7037ec2f171b5f917f90ece37ba20b4d8506ce
Cr-Commit-Position: refs/heads/master@{#387263}
==========

[commit-bot: I haz the power, 2016-04-14 08:43:39]

Patchset 4 (id:??) landed as
https://crrev.com/fd7037ec2f171b5f917f90ece37ba20b4d8506ce
Cr-Commit-Position: refs/heads/master@{#387263}