[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

This should mitigate a bug that FirstMeaningfulPaint is reported too
soon (or not reported) on some CPU-heavy pages, because network idle is
detected while CPU is busy running scripts.

BUG=659021, 674228
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Committed: https://crrev.com/2b891d60b92a6066fa1620794e244ef6e0ce65e2
Cr-Commit-Position: refs/heads/master@{#438791}

[Kunihiko Sakamoto, 2016-12-15 06:29:01]

Description was changed from

==========
[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

BUG=659021,674228
==========

to

==========
[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

BUG=659021,674228
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[Kunihiko Sakamoto, 2016-12-15 06:29:18]

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

[commit-bot: I haz the power, 2016-12-15 06:29:37]

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

[Kunihiko Sakamoto, 2016-12-15 06:39:23]

Description was changed from

==========
[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

BUG=659021,674228
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

This should mitigate a bug that FirstMeaningfulPaint is reported too
soon (or not reported) on some CPU-heavy pages, because network idle is
detected while CPU is busy running scripts.

BUG=659021,674228
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[Kunihiko Sakamoto, 2016-12-15 06:54:44]

ksakamoto@chromium.org changed reviewers:
+ kouhei@chromium.org

[kouhei (in TOK), 2016-12-15 07:32:27]

lgtm

Fair enough

[Kunihiko Sakamoto, 2016-12-15 07:50:24]

The CQ bit was checked by ksakamoto@chromium.org

[Kunihiko Sakamoto, 2016-12-15 07:50:24]

The patchset sent to the CQ was uploaded after l-g-t-m from kouhei@chromium.org
Link to the patchset: https://codereview.chromium.org/2581633002/#ps20001
(title: "fix&add test")

[commit-bot: I haz the power, 2016-12-15 07:50:34]

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, 2016-12-15 09:26:00]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1481788224153960,
"parent_rev": "49148010afc2b4a85f7c103fde6738218e5ae602", "commit_rev":
"9b220d080d7b90410e9ffd5256d7bf011e072f15"}

[commit-bot: I haz the power, 2016-12-15 09:26:26]

Description was changed from

==========
[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

This should mitigate a bug that FirstMeaningfulPaint is reported too
soon (or not reported) on some CPU-heavy pages, because network idle is
detected while CPU is busy running scripts.

BUG=659021,674228
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

This should mitigate a bug that FirstMeaningfulPaint is reported too
soon (or not reported) on some CPU-heavy pages, because network idle is
detected while CPU is busy running scripts.

BUG=659021,674228
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2581633002
==========

[commit-bot: I haz the power, 2016-12-15 09:26:27]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-12-15 09:28:02]

Description was changed from

==========
[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

This should mitigate a bug that FirstMeaningfulPaint is reported too
soon (or not reported) on some CPU-heavy pages, because network idle is
detected while CPU is busy running scripts.

BUG=659021,674228
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2581633002
==========

to

==========
[FirstMeaningfulPaint] Do not stop observing layouts before FirstContentfulPaint

This should mitigate a bug that FirstMeaningfulPaint is reported too
soon (or not reported) on some CPU-heavy pages, because network idle is
detected while CPU is busy running scripts.

BUG=659021,674228
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Committed: https://crrev.com/2b891d60b92a6066fa1620794e244ef6e0ce65e2
Cr-Commit-Position: refs/heads/master@{#438791}
==========

[commit-bot: I haz the power, 2016-12-15 09:28:03]

Patchset 2 (id:??) landed as
https://crrev.com/2b891d60b92a6066fa1620794e244ef6e0ce65e2
Cr-Commit-Position: refs/heads/master@{#438791}