Clear document scope dirtiness in import StyleEngine.

Clear document scope dirtiness in import StyleEngine.

This is part of the plan to fix 717506 by re-collect sheets for
style_sheets_for_style_sheet_list_  separately from updating all of
active style to make it more light-weight.

Some sanity checking and comment about document scope dirtiness in,
and clear dirtiness after updating active sheets for, html imports.

Also renamed to UpdateActiveStyleSheetsInImport() to make it clearer
what the method does.

BUG=717506
Review-Url: https://codereview.chromium.org/2880263002
Cr-Commit-Position: refs/heads/master@{#472447}
Committed: https://chromium.googlesource.com/chromium/src/+/30a51b712800d2197a211b058dadb4a2c7762fed

[rune, 2017-05-15 11:11:29]

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

[commit-bot: I haz the power, 2017-05-15 11:11:51]

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, 2017-05-15 11:45:22]

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

[commit-bot: I haz the power, 2017-05-15 11:45:23]

Dry run: 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_...)

[rune, 2017-05-15 14:22:01]

rune@opera.com changed reviewers:
+ meade@chromium.org

[rune, 2017-05-15 14:22:01]

ptal

[meade_UTC10, 2017-05-16 07:08:17]

lgtm

[rune, 2017-05-16 08:18:03]

rune@opera.com changed reviewers:
+ jochen@chromium.org

[rune, 2017-05-16 08:18:03]

jochen@ for web/

[jochen (gone - plz use gerrit), 2017-05-16 11:16:24]

lgtm

[rune, 2017-05-16 19:43:05]

The CQ bit was checked by rune@opera.com

[commit-bot: I haz the power, 2017-05-16 19:44:15]

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, 2017-05-17 03:00:29]

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

[commit-bot: I haz the power, 2017-05-17 03:00:30]

Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[rune, 2017-05-17 07:08:21]

The CQ bit was checked by rune@opera.com

[commit-bot: I haz the power, 2017-05-17 07:09:11]

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, 2017-05-17 09:21:48]

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

[commit-bot: I haz the power, 2017-05-17 09:21:49]

Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[rune, 2017-05-17 12:52:23]

The CQ bit was checked by rune@opera.com

[commit-bot: I haz the power, 2017-05-17 12:52:43]

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, 2017-05-17 14:19:19]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495025543647210, "parent_rev":
"07557aac9176d0b67f0a055db42d9c9ed23e0ed0", "commit_rev":
"30a51b712800d2197a211b058dadb4a2c7762fed"}

[commit-bot: I haz the power, 2017-05-17 14:19:30]

Description was changed from

==========
Clear document scope dirtiness in import StyleEngine.

This is part of the plan to fix 717506 by re-collect sheets for
style_sheets_for_style_sheet_list_  separately from updating all of
active style to make it more light-weight.

Some sanity checking and comment about document scope dirtiness in,
and clear dirtiness after updating active sheets for, html imports.

Also renamed to UpdateActiveStyleSheetsInImport() to make it clearer
what the method does.

BUG=717506
==========

to

==========
Clear document scope dirtiness in import StyleEngine.

This is part of the plan to fix 717506 by re-collect sheets for
style_sheets_for_style_sheet_list_  separately from updating all of
active style to make it more light-weight.

Some sanity checking and comment about document scope dirtiness in,
and clear dirtiness after updating active sheets for, html imports.

Also renamed to UpdateActiveStyleSheetsInImport() to make it clearer
what the method does.

BUG=717506

Review-Url: https://codereview.chromium.org/2880263002
Cr-Commit-Position: refs/heads/master@{#472447}
Committed:
https://chromium.googlesource.com/chromium/src/+/30a51b712800d2197a211b058dad...
==========

[commit-bot: I haz the power, 2017-05-17 14:19:31]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/30a51b712800d2197a211b058dad...