Re-collect rule features for watched selectors.

Re-collect rule features for watched selectors.

Instead of nuking the StyleResolver and re-collecting all stylesheets,
clear the current rule features on StyleResolver and mark them for
re-collection. We need to re-collect because the rule features on
StyleResolver are a union of the rule features from stylesheets and the
watched selectors from the declarativeContent css api for extensions.

A bonus is that this change avoids a synchronous active stylesheets
update.

R=dstockwell@chromium.org
BUG=567021
Committed: https://crrev.com/440a6873196cecc4f18b7b7665694ab34dd2d2a7
Cr-Commit-Position: refs/heads/master@{#379529}

[rune, 2016-03-01 19:07:20]

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

[rune, 2016-03-01 19:07:48]

ptal

[commit-bot: I haz the power, 2016-03-01 19:08:58]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1757503002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1757503002/1

[commit-bot: I haz the power, 2016-03-01 20:43:24]

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

[commit-bot: I haz the power, 2016-03-01 20:43:25]

Dry run: This issue passed the CQ dry run.

[rune, 2016-03-06 20:24:27]

ping

[dstockwell, 2016-03-06 23:08:52]

lgtm

[rune, 2016-03-07 07:45:47]

The CQ bit was checked by rune@opera.com

[commit-bot: I haz the power, 2016-03-07 07:45:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1757503002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1757503002/1

[commit-bot: I haz the power, 2016-03-07 09:13:10]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-07 09:14:11]

Description was changed from

==========
Re-collect rule features for watched selectors.

Instead of nuking the StyleResolver and re-collecting all stylesheets,
clear the current rule features on StyleResolver and mark them for
re-collection. We need to re-collect because the rule features on
StyleResolver are a union of the rule features from stylesheets and the
watched selectors from the declarativeContent css api for extensions.

A bonus is that this change avoids a synchronous active stylesheets
update.

R=dstockwell@chromium.org
BUG=567021
==========

to

==========
Re-collect rule features for watched selectors.

Instead of nuking the StyleResolver and re-collecting all stylesheets,
clear the current rule features on StyleResolver and mark them for
re-collection. We need to re-collect because the rule features on
StyleResolver are a union of the rule features from stylesheets and the
watched selectors from the declarativeContent css api for extensions.

A bonus is that this change avoids a synchronous active stylesheets
update.

R=dstockwell@chromium.org
BUG=567021

Committed: https://crrev.com/440a6873196cecc4f18b7b7665694ab34dd2d2a7
Cr-Commit-Position: refs/heads/master@{#379529}
==========

[commit-bot: I haz the power, 2016-03-07 09:14:12]

Patchset 1 (id:??) landed as
https://crrev.com/440a6873196cecc4f18b7b7665694ab34dd2d2a7
Cr-Commit-Position: refs/heads/master@{#379529}