Make FrameSelection to utilize SynchronousMutationObserver

Make FrameSelection to utilize SynchronousMutationObserver

This patch makes |FrameSelection| to utilize |SynchronousMutationObserver| to
simplify DOM mutation observing by removing call from |Document| for improving 
code health and a preparation of [1].


[1] http://crrev.com/2637013002: WIP Make Document to hold non-
canonicalized positions

BUG=682878
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2638423005
Cr-Commit-Position: refs/heads/master@{#445043}
Committed: https://chromium.googlesource.com/chromium/src/+/cafd47a29528e260f26587c8eab0db161855e851

[yosin_UTC9, 2017-01-20 07:15:54]

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

[commit-bot: I haz the power, 2017-01-20 07:16:14]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-20 07:29:07]

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

[commit-bot: I haz the power, 2017-01-20 07:29:08]

Dry run: Try jobs failed on following builders:
  cast_shell_android on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/cast_shell_a...)

[yosin_UTC9, 2017-01-20 07:42:02]

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

[yosin_UTC9, 2017-01-20 07:42:16]

Patchset #1 (id:1) has been deleted

[commit-bot: I haz the power, 2017-01-20 07:42:18]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[yosin_UTC9, 2017-01-20 08:09:12]

Description was changed from

==========
2017-01-20T16:14:10

2017-01-20T16:14:06

BUG=
==========

to

==========
Make FrameSelection to utilize SynchronousMutationObserver

This patch makes |FrameSelection| to utilize |SynchronousMutationObserver| to
simplify DOM mutation by removing call from |Document| for improving code health
and a preparation of [1].


[1] http://crrev.com/2637013002: WIP Make Document to hold non-
canonicalized positions

BUG=682878
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2017-01-20 08:25:54]

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

[commit-bot: I haz the power, 2017-01-20 08:26:08]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[yosin_UTC9, 2017-01-20 09:24:52]

Description was changed from

==========
Make FrameSelection to utilize SynchronousMutationObserver

This patch makes |FrameSelection| to utilize |SynchronousMutationObserver| to
simplify DOM mutation by removing call from |Document| for improving code health
and a preparation of [1].


[1] http://crrev.com/2637013002: WIP Make Document to hold non-
canonicalized positions

BUG=682878
TEST=n/a; no behavior changes
==========

to

==========
Make FrameSelection to utilize SynchronousMutationObserver

This patch makes |FrameSelection| to utilize |SynchronousMutationObserver| to
simplify DOM mutation observing by removing call from |Document| for improving 
code health and a preparation of [1].


[1] http://crrev.com/2637013002: WIP Make Document to hold non-
canonicalized positions

BUG=682878
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2017-01-20 09:25:14]

yosin@chromium.org changed reviewers:
+ tkent@chromium.org, xiaochengh@chromium.org, yoichio@chromium.org

[yosin_UTC9, 2017-01-20 09:25:14]

PTAL

[tkent, 2017-01-20 09:27:37]

lgtm

[yosin_UTC9, 2017-01-20 09:32:03]

The CQ bit was unchecked by yosin@chromium.org

[yosin_UTC9, 2017-01-20 09:32:06]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2017-01-20 09:32:21]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-20 09:37:54]

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

[commit-bot: I haz the power, 2017-01-20 09:37:55]

Try jobs failed on following builders:
  chromium_presubmit on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[yosin_UTC9, 2017-01-20 10:21:56]

The CQ bit was checked by yosin@chromium.org

[yosin_UTC9, 2017-01-20 10:21:56]

The patchset sent to the CQ was uploaded after l-g-t-m from tkent@chromium.org
Link to the patchset: https://codereview.chromium.org/2638423005/#ps60001
(title: "2017-01-20T19:16:11 Rebase")

[commit-bot: I haz the power, 2017-01-20 10:22:05]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-20 11:58:40]

CQ is committing da patch.

Bot data: {"patchset_id": 60001, "attempt_start_ts": 1484907716333200,
"parent_rev": "239ed9a242283d9af2e37f609d8e13086ddac1e0", "commit_rev":
"cafd47a29528e260f26587c8eab0db161855e851"}

[commit-bot: I haz the power, 2017-01-20 11:59:49]

Description was changed from

==========
Make FrameSelection to utilize SynchronousMutationObserver

This patch makes |FrameSelection| to utilize |SynchronousMutationObserver| to
simplify DOM mutation observing by removing call from |Document| for improving 
code health and a preparation of [1].


[1] http://crrev.com/2637013002: WIP Make Document to hold non-
canonicalized positions

BUG=682878
TEST=n/a; no behavior changes
==========

to

==========
Make FrameSelection to utilize SynchronousMutationObserver

This patch makes |FrameSelection| to utilize |SynchronousMutationObserver| to
simplify DOM mutation observing by removing call from |Document| for improving 
code health and a preparation of [1].


[1] http://crrev.com/2637013002: WIP Make Document to hold non-
canonicalized positions

BUG=682878
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2638423005
Cr-Commit-Position: refs/heads/master@{#445043}
Committed:
https://chromium.googlesource.com/chromium/src/+/cafd47a29528e260f26587c8eab0...
==========

[commit-bot: I haz the power, 2017-01-20 11:59:51]

Committed patchset #3 (id:60001) as
https://chromium.googlesource.com/chromium/src/+/cafd47a29528e260f26587c8eab0...