Don't add to uncommonAttributeRules for non-sharable cases.

Don't add to uncommonAttributeRules for non-sharable cases.

Like for siblingRules in [1], we don't need to add rules to
uncommonAttributeRules if the attribute selectors are left of ::content,
::slotted, :host, or :host-context as two elements only may share style
if they match the same elements left of the two former, and anything
left of the two latter may never match.

[1] https://codereview.chromium.org/1695393002/

R=kochi@chromium.org

Committed: https://crrev.com/71d114fe5969d9b1def4d91657409537ff88b886
Cr-Commit-Position: refs/heads/master@{#376106}

[rune, 2016-02-17 13:27:04]

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

[commit-bot: I haz the power, 2016-02-17 13:27:21]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1706793002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1706793002/1

[rune, 2016-02-17 13:27:32]

ptal

[commit-bot: I haz the power, 2016-02-17 16:12:59]

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

[commit-bot: I haz the power, 2016-02-17 16:13:00]

Dry run: This issue passed the CQ dry run.

[kochi, 2016-02-18 02:36:00]

lgtm

[rune, 2016-02-18 06:11:23]

The CQ bit was checked by rune@opera.com

[commit-bot: I haz the power, 2016-02-18 06:12:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1706793002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1706793002/1

[commit-bot: I haz the power, 2016-02-18 06:20:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-18 06:21:37]

Description was changed from

==========
Don't add to uncommonAttributeRules for non-sharable cases.

Like for siblingRules in [1], we don't need to add rules to
uncommonAttributeRules if the attribute selectors are left of ::content,
::slotted, :host, or :host-context as two elements only may share style
if they match the same elements left of the two former, and anything
left of the two latter may never match.

[1] https://codereview.chromium.org/1695393002/

R=kochi@chromium.org
==========

to

==========
Don't add to uncommonAttributeRules for non-sharable cases.

Like for siblingRules in [1], we don't need to add rules to
uncommonAttributeRules if the attribute selectors are left of ::content,
::slotted, :host, or :host-context as two elements only may share style
if they match the same elements left of the two former, and anything
left of the two latter may never match.

[1] https://codereview.chromium.org/1695393002/

R=kochi@chromium.org

Committed: https://crrev.com/71d114fe5969d9b1def4d91657409537ff88b886
Cr-Commit-Position: refs/heads/master@{#376106}
==========

[commit-bot: I haz the power, 2016-02-18 06:21:38]

Patchset 1 (id:??) landed as
https://crrev.com/71d114fe5969d9b1def4d91657409537ff88b886
Cr-Commit-Position: refs/heads/master@{#376106}