Update the behavior of ShadowRoot.activeElement to match the latest spec

Update the behavior of ShadowRoot.activeElement to match the latest spec

The spec change is:
https://github.com/w3c/webcomponents/commit/15a203c8393aef0df7223ab1d43406aa11a7e71e

- v1 shadow tree should have the new behavior.
- v0 shadow tree will not change the behavior for a compatibility.

BUG=601303
Committed: https://crrev.com/4902d6ccd120be91c417b891b13d6fdb0b4e8e4c
Cr-Commit-Position: refs/heads/master@{#386002}

[hayato, 2016-04-07 05:07:39]

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

[commit-bot: I haz the power, 2016-04-07 05:07:48]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1870583002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1870583002/1

[commit-bot: I haz the power, 2016-04-07 06:47:03]

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

[commit-bot: I haz the power, 2016-04-07 06:47:04]

Dry run: This issue passed the CQ dry run.

[hayato, 2016-04-07 09:25:37]

hayato@chromium.org changed reviewers:
+ kochi@chromium.org

[hayato, 2016-04-07 09:25:37]

PTAL

[kochi, 2016-04-08 01:23:58]

lgtm

https://codereview.chromium.org/1870583002/diff/1/third_party/WebKit/LayoutTe...
File third_party/WebKit/LayoutTests/shadow-dom/active-element.html (right):

https://codereview.chromium.org/1870583002/diff/1/third_party/WebKit/LayoutTe...
third_party/WebKit/LayoutTests/shadow-dom/active-element.html:61: },
"activeElement for a node in a nested shadwo tree");
nit: s/shadwo/shadow/

https://codereview.chromium.org/1870583002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/dom/TreeScope.cpp (right):

https://codereview.chromium.org/1870583002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/dom/TreeScope.cpp:434: DCHECK(retargeted->
isElementNode());
nit: unnecessary space

[hayato, 2016-04-08 04:45:47]

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

[hayato, 2016-04-08 04:45:51]

fixed

[commit-bot: I haz the power, 2016-04-08 04:45:55]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1870583002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1870583002/20001

[hayato, 2016-04-08 04:46:29]

https://codereview.chromium.org/1870583002/diff/1/third_party/WebKit/LayoutTe...
File third_party/WebKit/LayoutTests/shadow-dom/active-element.html (right):

https://codereview.chromium.org/1870583002/diff/1/third_party/WebKit/LayoutTe...
third_party/WebKit/LayoutTests/shadow-dom/active-element.html:61: },
"activeElement for a node in a nested shadwo tree");
Done

https://codereview.chromium.org/1870583002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/dom/TreeScope.cpp (right):

https://codereview.chromium.org/1870583002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/dom/TreeScope.cpp:434: DCHECK(retargeted->
isElementNode());
Done

[hayato, 2016-04-08 04:46:35]

The CQ bit was unchecked by hayato@chromium.org

[hayato, 2016-04-08 04:46:42]

The CQ bit was checked by hayato@chromium.org

[hayato, 2016-04-08 04:46:42]

The patchset sent to the CQ was uploaded after l-g-t-m from kochi@chromium.org
Link to the patchset: https://codereview.chromium.org/1870583002/#ps20001
(title: "fixed")

[commit-bot: I haz the power, 2016-04-08 04:46:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1870583002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1870583002/20001

[kochi, 2016-04-08 05:26:54]

lgtm

[hayato, 2016-04-08 05:32:28]

The CQ bit was unchecked by hayato@chromium.org

[hayato, 2016-04-08 05:32:31]

The CQ bit was checked by hayato@chromium.org

[commit-bot: I haz the power, 2016-04-08 05:32:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1870583002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1870583002/20001

[commit-bot: I haz the power, 2016-04-08 05:59:47]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-04-08 06:01:20]

Description was changed from

==========
Update the behavior of ShadowRoot.activeElement to match the latest spec

The spec change is:
https://github.com/w3c/webcomponents/commit/15a203c8393aef0df7223ab1d43406aa1...

- v1 shadow tree should have the new behavior.
- v0 shadow tree will not change the behavior for a compatibility.

BUG=601303
==========

to

==========
Update the behavior of ShadowRoot.activeElement to match the latest spec

The spec change is:
https://github.com/w3c/webcomponents/commit/15a203c8393aef0df7223ab1d43406aa1...

- v1 shadow tree should have the new behavior.
- v0 shadow tree will not change the behavior for a compatibility.

BUG=601303

Committed: https://crrev.com/4902d6ccd120be91c417b891b13d6fdb0b4e8e4c
Cr-Commit-Position: refs/heads/master@{#386002}
==========

[commit-bot: I haz the power, 2016-04-08 06:01:21]

Patchset 2 (id:??) landed as
https://crrev.com/4902d6ccd120be91c417b891b13d6fdb0b4e8e4c
Cr-Commit-Position: refs/heads/master@{#386002}