Refactor scroll updates after layout.

Refactor scroll updates after layout.

Every LayoutBox with a PaintLayer will do some layer updating at the end of its layout; this consists of:

- updating the layer's transform
- updating the layer's scrollable area, if necessary
- in the near future, updating the layer's size

This change consolidates all of those into LayoutBox::UpdateAfterLayout.

BUG=701575
R=skobes@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2839183002
Cr-Commit-Position: refs/heads/master@{#467995}
Committed: https://chromium.googlesource.com/chromium/src/+/61472254f109375173180671106927aa6867699a

[szager1, 2017-04-26 13:01:05]

Description was changed from

==========
Refactor scroll updates after layout.

BUG=701575
R=skobes@chromium.org
==========

to

==========
Refactor scroll updates after layout.

BUG=701575
R=skobes@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[szager1, 2017-04-26 13:01:18]

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

[commit-bot: I haz the power, 2017-04-26 13:01:36]

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, 2017-04-26 14:26:29]

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

[commit-bot: I haz the power, 2017-04-26 14:26:30]

Dry run: This issue passed the CQ dry run.

[szager1, 2017-04-26 16:53:09]

This is part one of the set-layer-size-during-layout refactor.

[skobes, 2017-04-27 23:16:08]

lgtm w/ nit: please expand the change description to be a little more specific.

[szager1, 2017-04-28 10:49:14]

Description was changed from

==========
Refactor scroll updates after layout.

BUG=701575
R=skobes@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Refactor scroll updates after layout.

Every LayoutBox with a PaintLayer will do some layer updating at the end of its
layout; this consists of:

- updating the layer's transform
- updating the layer's scrollable area, if necessary
- in the near future, updating the layer's size

This change consolidates all of those into LayoutBox::UpdateAfterLayout.

BUG=701575
R=skobes@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[szager1, 2017-04-28 10:50:27]

The CQ bit was checked by szager@chromium.org

[commit-bot: I haz the power, 2017-04-28 10:50:47]

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, 2017-04-28 10:54:28]

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

[commit-bot: I haz the power, 2017-04-28 10:54:29]

Try jobs failed on following builders:
  mac_chromium_rel_ng on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[szager1, 2017-04-28 13:02:02]

The CQ bit was checked by szager@chromium.org

[szager1, 2017-04-28 13:02:03]

The patchset sent to the CQ was uploaded after l-g-t-m from skobes@chromium.org
Link to the patchset: https://codereview.chromium.org/2839183002/#ps20001
(title: "rebase")

[commit-bot: I haz the power, 2017-04-28 13:02:27]

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, 2017-04-28 14:58:31]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1493384522807270,
"parent_rev": "b0d272a79a53eded96c104583763ee52ada89136", "commit_rev":
"61472254f109375173180671106927aa6867699a"}

[commit-bot: I haz the power, 2017-04-28 14:59:02]

Description was changed from

==========
Refactor scroll updates after layout.

Every LayoutBox with a PaintLayer will do some layer updating at the end of its
layout; this consists of:

- updating the layer's transform
- updating the layer's scrollable area, if necessary
- in the near future, updating the layer's size

This change consolidates all of those into LayoutBox::UpdateAfterLayout.

BUG=701575
R=skobes@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Refactor scroll updates after layout.

Every LayoutBox with a PaintLayer will do some layer updating at the end of its
layout; this consists of:

- updating the layer's transform
- updating the layer's scrollable area, if necessary
- in the near future, updating the layer's size

This change consolidates all of those into LayoutBox::UpdateAfterLayout.

BUG=701575
R=skobes@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2839183002
Cr-Commit-Position: refs/heads/master@{#467995}
Committed:
https://chromium.googlesource.com/chromium/src/+/61472254f1093751731806711069...
==========

[commit-bot: I haz the power, 2017-04-28 14:59:03]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/61472254f1093751731806711069...