Fix issue when background changes painting target layer

Fix issue when background changes painting target layer

BUG=672149
TEST=paint/invalidation/compositing/stop-painting-onto-scrolling-contents.html
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Committed: https://crrev.com/31210a50c0fe3f11dc838209f06f7d84579dc8f0
Cr-Commit-Position: refs/heads/master@{#437296}

[Xianzhu, 2016-12-07 20:50:00]

Description was changed from

==========
Fix issue when background changes painting target layer

BUG=672149
TEST=paint/invalidation/compositing/stop-painting-onto-scrolling-contents.html
==========

to

==========
Fix issue when background changes painting target layer

BUG=672149
TEST=paint/invalidation/compositing/stop-painting-onto-scrolling-contents.html
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[Xianzhu, 2016-12-07 20:50:01]

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

[commit-bot: I haz the power, 2016-12-07 20:50:38]

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, 2016-12-07 21:28:02]

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

[commit-bot: I haz the power, 2016-12-07 21:28:02]

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_...)

[Xianzhu, 2016-12-07 23:03:57]

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

[chrishtr, 2016-12-07 23:52:34]

lgtm

[Xianzhu, 2016-12-08 00:57:07]

The CQ bit was checked by wangxianzhu@chromium.org

[Xianzhu, 2016-12-08 00:57:07]

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/2559863002/#ps20001
(title: "Rebaseline")

[commit-bot: I haz the power, 2016-12-08 00:57:41]

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, 2016-12-08 01:33:36]

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

[commit-bot: I haz the power, 2016-12-08 01:33:37]

Try jobs failed on following builders:
  android_n5x_swarming_rel on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_n5x_...)
  win_chromium_compile_dbg_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_comp...)

[Xianzhu, 2016-12-08 01:44:35]

The CQ bit was checked by wangxianzhu@chromium.org

[Xianzhu, 2016-12-08 01:44:35]

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/2559863002/#ps40001
(title: "Fix windows build")

[commit-bot: I haz the power, 2016-12-08 01:45:16]

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, 2016-12-08 03:17:15]

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

[commit-bot: I haz the power, 2016-12-08 03:17:16]

Try jobs failed on following builders:
  android_n5x_swarming_rel on master.tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_n5x_...)

[Xianzhu, 2016-12-08 17:12:21]

The CQ bit was checked by wangxianzhu@chromium.org

[commit-bot: I haz the power, 2016-12-08 17:12:42]

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

[flackr, 2016-12-08 17:23:31]

LGTM too

[commit-bot: I haz the power, 2016-12-08 18:52:13]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1481217141200740,
"parent_rev": "096b19fe8abf6cedcb1823b824c7a581c734d8eb", "commit_rev":
"e26d229cab694d8d1a1c3de7b8f7ee154c08035e"}

[commit-bot: I haz the power, 2016-12-08 18:52:46]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-12-08 18:57:04]

Description was changed from

==========
Fix issue when background changes painting target layer

BUG=672149
TEST=paint/invalidation/compositing/stop-painting-onto-scrolling-contents.html
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Fix issue when background changes painting target layer

BUG=672149
TEST=paint/invalidation/compositing/stop-painting-onto-scrolling-contents.html
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Committed: https://crrev.com/31210a50c0fe3f11dc838209f06f7d84579dc8f0
Cr-Commit-Position: refs/heads/master@{#437296}
==========

[commit-bot: I haz the power, 2016-12-08 18:57:05]

Patchset 3 (id:??) landed as
https://crrev.com/31210a50c0fe3f11dc838209f06f7d84579dc8f0
Cr-Commit-Position: refs/heads/master@{#437296}