Use a scroll recorder rather than scroll offset for composited-scrolling backgrounds.

Use a scroll recorder rather than scroll offset for composited-scrolling backgrounds.

BUG=643741
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Committed: https://crrev.com/1e64d5cf1fd26c35ffbe26fbaf6d3033a42c9852
Cr-Commit-Position: refs/heads/master@{#417843}

[chrishtr, 2016-09-09 21:42:39]

Description was changed from

==========
none

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

to

==========
none

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[chrishtr, 2016-09-09 21:45:52]

Description was changed from

==========
none

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Use a scroll recorder rather than scroll offset for composited-scrolling
backgrounds.

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[chrishtr, 2016-09-09 21:46:03]

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

[chrishtr, 2016-09-09 21:46:12]

Description was changed from

==========
Use a scroll recorder rather than scroll offset for composited-scrolling
backgrounds.

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Use a scroll recorder rather than scroll offset for composited-scrolling
backgrounds.

BUG=643741

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[commit-bot: I haz the power, 2016-09-09 21:46:29]

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

[chrishtr, 2016-09-09 21:46:45]

chrishtr@chromium.org changed reviewers:
+ flackr@chromium.org

[chrishtr, 2016-09-09 21:46:46]

https://codereview.chromium.org/2327243002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/paint/BoxPainter.cpp (right):

https://codereview.chromium.org/2327243002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/paint/BoxPainter.cpp:62: Optional<ScrollRecorder>
scrollRecorder;
*ScrollDisplayItems are never cached, so the caching problem is avoided.

[commit-bot: I haz the power, 2016-09-09 23:14:16]

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

[commit-bot: I haz the power, 2016-09-09 23:14:17]

Dry run: Try jobs failed on following builders:
  win_chromium_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[chrishtr, 2016-09-10 04:03:57]

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

[commit-bot: I haz the power, 2016-09-10 04:04:11]

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, 2016-09-10 05:39:33]

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

[commit-bot: I haz the power, 2016-09-10 05:39:34]

Dry run: This issue passed the CQ dry run.

[flackr, 2016-09-10 11:31:27]

LGTM. We could add a test but my upcoming patch will test this anyways on the
existing tests so perhaps it's not important to add a test here.

[chrishtr, 2016-09-10 20:43:11]

The CQ bit was checked by chrishtr@chromium.org

[commit-bot: I haz the power, 2016-09-10 20:43:20]

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, 2016-09-10 20:46:53]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-10 20:49:32]

Description was changed from

==========
Use a scroll recorder rather than scroll offset for composited-scrolling
backgrounds.

BUG=643741

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Use a scroll recorder rather than scroll offset for composited-scrolling
backgrounds.

BUG=643741

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Committed: https://crrev.com/1e64d5cf1fd26c35ffbe26fbaf6d3033a42c9852
Cr-Commit-Position: refs/heads/master@{#417843}
==========

[commit-bot: I haz the power, 2016-09-10 20:49:35]

Patchset 2 (id:??) landed as
https://crrev.com/1e64d5cf1fd26c35ffbe26fbaf6d3033a42c9852
Cr-Commit-Position: refs/heads/master@{#417843}