Add PaintOptimizations feature to control subsequence caching and empty phase skipping

Add PaintOptimizations feature to control subsequence caching and empty phase skipping

BUG=612911
Committed: https://crrev.com/825e5fab2485e8e3ea64bf4d957cdd1cd22f9daa
Cr-Commit-Position: refs/heads/master@{#394682}

[Xianzhu, 2016-05-18 23:01:52]

wangxianzhu@chromium.org changed reviewers:
+ chrishtr@chromium.org, kinuko@chromium.org

[Xianzhu, 2016-05-18 23:01:52]

Ptal:

kinuko@: content/
chrishtr@: third_party/WebKit

[chrishtr, 2016-05-19 00:05:13]

lgtm

Please try a run through the tests with the flag before committing.

[Xianzhu, 2016-05-19 00:49:29]

The CQ bit was checked by wangxianzhu@chromium.org

[Xianzhu, 2016-05-19 00:49:29]

The patchset sent to the CQ was uploaded after l-g-t-m from
chrishtr@chromium.org
Link to the patchset: https://codereview.chromium.org/1988423002/#ps40001
(title: "Feature disabled by default, for testing on try bots.")

[commit-bot: I haz the power, 2016-05-19 00:50:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1988423002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1988423002/40001

[Xianzhu, 2016-05-19 00:51:51]

Patchset #4 (id:60001) has been deleted

[Xianzhu, 2016-05-19 00:52:00]

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

[commit-bot: I haz the power, 2016-05-19 00:52:36]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1988423002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1988423002/40001

[kinuko, 2016-05-19 01:39:30]

lgtm.

[Xianzhu, 2016-05-19 05:05:09]

On 2016/05/19 00:05:13, chrishtr wrote:
> lgtm
> 
> Please try a run through the tests with the flag before committing.

https://codereview.chromium.org/1988423002/#ps40001
All bots passed with the flag set to false by default.

The landing patch has the flag set to true by default.

[Xianzhu, 2016-05-19 05:05:15]

The CQ bit was checked by wangxianzhu@chromium.org

[Xianzhu, 2016-05-19 05:05:16]

The patchset sent to the CQ was uploaded after l-g-t-m from
chrishtr@chromium.org
Link to the patchset: https://codereview.chromium.org/1988423002/#ps2 (title:
"Original CL for landing")

[commit-bot: I haz the power, 2016-05-19 05:05:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1988423002/2
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1988423002/2

[commit-bot: I haz the power, 2016-05-19 05:10:54]

Committed patchset #4 (id:2)

[commit-bot: I haz the power, 2016-05-19 05:12:39]

Description was changed from

==========
Add PaintOptimizations feature to control subsequence caching and empty phase
skipping

BUG=612911
==========

to

==========
Add PaintOptimizations feature to control subsequence caching and empty phase
skipping

BUG=612911

Committed: https://crrev.com/825e5fab2485e8e3ea64bf4d957cdd1cd22f9daa
Cr-Commit-Position: refs/heads/master@{#394682}
==========

[commit-bot: I haz the power, 2016-05-19 05:12:41]

Patchset 4 (id:??) landed as
https://crrev.com/825e5fab2485e8e3ea64bf4d957cdd1cd22f9daa
Cr-Commit-Position: refs/heads/master@{#394682}

[Xianzhu, 2016-08-29 18:15:33]

A revert of this CL (patchset #4 id:2) has been created in
https://codereview.chromium.org/2289923002/ by wangxianzhu@chromium.org.

The reason for reverting is: We have finished the field trial..