Invalidate visited state changes for svg links.

Invalidate visited state changes for svg links.

SVGAElement only caused :link/:visited recalcs when it became a link or
stopped being so. Now recalculate style whenever href changes in case the
:visited/:link state changes. Also use style invalidation instead of
SubtreeStyleChange, as the latter entails sibling forest recalc in case
we have adjacent combinators.

R=fs@opera.com
BUG=563485, 557440
Committed: https://crrev.com/a20490516fb1ec4aa983bd233b261689417de64e
Cr-Commit-Position: refs/heads/master@{#362425}

[rune, 2015-12-01 13:06:22]

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

[commit-bot: I haz the power, 2015-12-01 13:06:48]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1484083005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1484083005/1

[fs, 2015-12-01 13:32:58]

lgtm

https://codereview.chromium.org/1484083005/diff/1/third_party/WebKit/LayoutTe...
File third_party/WebKit/LayoutTests/svg/css/anchor-change-href.svg (right):

https://codereview.chromium.org/1484083005/diff/1/third_party/WebKit/LayoutTe...
third_party/WebKit/LayoutTests/svg/css/anchor-change-href.svg:28: // The
elementCount should have been 2, but visited links are
This has a dodgy feel to it, but I guess we can pray that it doesn't cause
troubles down the line...

[commit-bot: I haz the power, 2015-12-01 14:21:48]

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

[commit-bot: I haz the power, 2015-12-01 14:21:49]

Dry run: This issue passed the CQ dry run.

[rune, 2015-12-01 14:42:08]

The CQ bit was checked by rune@opera.com

[commit-bot: I haz the power, 2015-12-01 14:42:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1484083005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1484083005/1

[rune, 2015-12-01 15:03:35]

The CQ bit was unchecked by rune@opera.com

[rune, 2015-12-01 15:03:38]

The CQ bit was checked by rune@opera.com

[commit-bot: I haz the power, 2015-12-01 15:04:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1484083005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1484083005/1

[commit-bot: I haz the power, 2015-12-01 16:29:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-01 16:30:27]

Description was changed from

==========
Invalidate visited state changes for svg links.

SVGAElement only caused :link/:visited recalcs when it became a link or
stopped being so. Now recalculate style whenever href changes in case the
:visited/:link state changes. Also use style invalidation instead of
SubtreeStyleChange, as the latter entails sibling forest recalc in case
we have adjacent combinators.

R=fs@opera.com
BUG=563485,557440
==========

to

==========
Invalidate visited state changes for svg links.

SVGAElement only caused :link/:visited recalcs when it became a link or
stopped being so. Now recalculate style whenever href changes in case the
:visited/:link state changes. Also use style invalidation instead of
SubtreeStyleChange, as the latter entails sibling forest recalc in case
we have adjacent combinators.

R=fs@opera.com
BUG=563485,557440

Committed: https://crrev.com/a20490516fb1ec4aa983bd233b261689417de64e
Cr-Commit-Position: refs/heads/master@{#362425}
==========

[commit-bot: I haz the power, 2015-12-01 16:30:28]

Patchset 1 (id:??) landed as
https://crrev.com/a20490516fb1ec4aa983bd233b261689417de64e
Cr-Commit-Position: refs/heads/master@{#362425}