Revert of Revert "Disable local background equivalence when we have a box shadow due to painting bug

Revert of Revert "Disable local background equivalence when we have a box shadow due to painting bug." (patchset #5 id:80001 of https://codereview.chromium.org/2561183002/ )

Reason for revert:
Caused a regression in drawing backgrounds when the window was sized around 1280x1024. Regression seen in at least Windows and Linux - see http://crbug.com/674429

BUG=674429
Original issue's description:
> Revert "Disable local background equivalence when we have a box shadow due to painting bug."
>
> This reverts commit a12e7a002f85301bf013b45e6e8bb61455304a76.
>
> BUG=646464
>
> TEST=Visit http://output.jsbin.com/vucefi, confirm that both boxes have
> box shadows and the first box has sub-pixel AA text
>
> Committed: https://crrev.com/c765a85995920f79d3132e06a2c146316b823c3f
> Cr-Commit-Position: refs/heads/master@{#438020}

TBR=wangxianzhu@chromium.org,chrishtr@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=646464
Committed: https://crrev.com/4baddb7eb1745ba1f39697e89e303805f90efe16
Cr-Commit-Position: refs/heads/master@{#438897}

[smcgruer, 2016-12-15 15:51:32]

Created Revert of Revert "Disable local background equivalence when we have a
box shadow due to painting bug."

[smcgruer, 2016-12-15 15:51:47]

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

[smcgruer, 2016-12-15 15:55:24]

smcgruer@chromium.org changed reviewers:
+ schenney@google.com

[smcgruer, 2016-12-15 15:55:25]

As per http://crbug.com/674429, if anyone wants to try and fix the paint bug
instead feel free to speak up, otherwise I will come back to it after the
holidays.

[commit-bot: I haz the power, 2016-12-15 16:02:00]

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

[Xianzhu, 2016-12-15 16:25:15]

lgtm

[commit-bot: I haz the power, 2016-12-15 17:37:33]

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

[commit-bot: I haz the power, 2016-12-15 17:37:34]

Dry run: This issue passed the CQ dry run.

[smcgruer, 2016-12-15 19:43:40]

The CQ bit was checked by smcgruer@chromium.org

[commit-bot: I haz the power, 2016-12-15 19:44:14]

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, 2016-12-15 19:48:42]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481831020658830, "parent_rev":
"f798db328830103930f23ee1ab19ba1d119da1ec", "commit_rev":
"dcc73c9c86075ef406106ebe2da1d2206b1a204f"}

[commit-bot: I haz the power, 2016-12-15 19:49:06]

Description was changed from

==========
Revert of Revert "Disable local background equivalence when we have a box shadow
due to painting bug." (patchset #5 id:80001 of
https://codereview.chromium.org/2561183002/ )

Reason for revert:
Caused a regression in drawing backgrounds when the window was sized around
1280x1024. Regression seen in at least Windows and Linux - see
http://crbug.com/674429

BUG=674429

Original issue's description:
> Revert "Disable local background equivalence when we have a box shadow due to
painting bug."
> 
> This reverts commit a12e7a002f85301bf013b45e6e8bb61455304a76.
> 
> BUG=646464
> 
> TEST=Visit http://output.jsbin.com/vucefi, confirm that both boxes have
> box shadows and the first box has sub-pixel AA text
> 
> Committed: https://crrev.com/c765a85995920f79d3132e06a2c146316b823c3f
> Cr-Commit-Position: refs/heads/master@{#438020}

TBR=wangxianzhu@chromium.org,chrishtr@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=646464
==========

to

==========
Revert of Revert "Disable local background equivalence when we have a box shadow
due to painting bug." (patchset #5 id:80001 of
https://codereview.chromium.org/2561183002/ )

Reason for revert:
Caused a regression in drawing backgrounds when the window was sized around
1280x1024. Regression seen in at least Windows and Linux - see
http://crbug.com/674429

BUG=674429

Original issue's description:
> Revert "Disable local background equivalence when we have a box shadow due to
painting bug."
> 
> This reverts commit a12e7a002f85301bf013b45e6e8bb61455304a76.
> 
> BUG=646464
> 
> TEST=Visit http://output.jsbin.com/vucefi, confirm that both boxes have
> box shadows and the first box has sub-pixel AA text
> 
> Committed: https://crrev.com/c765a85995920f79d3132e06a2c146316b823c3f
> Cr-Commit-Position: refs/heads/master@{#438020}

TBR=wangxianzhu@chromium.org,chrishtr@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=646464

Review-Url: https://codereview.chromium.org/2576423002
==========

[commit-bot: I haz the power, 2016-12-15 19:49:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-15 19:52:54]

Description was changed from

==========
Revert of Revert "Disable local background equivalence when we have a box shadow
due to painting bug." (patchset #5 id:80001 of
https://codereview.chromium.org/2561183002/ )

Reason for revert:
Caused a regression in drawing backgrounds when the window was sized around
1280x1024. Regression seen in at least Windows and Linux - see
http://crbug.com/674429

BUG=674429

Original issue's description:
> Revert "Disable local background equivalence when we have a box shadow due to
painting bug."
> 
> This reverts commit a12e7a002f85301bf013b45e6e8bb61455304a76.
> 
> BUG=646464
> 
> TEST=Visit http://output.jsbin.com/vucefi, confirm that both boxes have
> box shadows and the first box has sub-pixel AA text
> 
> Committed: https://crrev.com/c765a85995920f79d3132e06a2c146316b823c3f
> Cr-Commit-Position: refs/heads/master@{#438020}

TBR=wangxianzhu@chromium.org,chrishtr@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=646464

Review-Url: https://codereview.chromium.org/2576423002
==========

to

==========
Revert of Revert "Disable local background equivalence when we have a box shadow
due to painting bug." (patchset #5 id:80001 of
https://codereview.chromium.org/2561183002/ )

Reason for revert:
Caused a regression in drawing backgrounds when the window was sized around
1280x1024. Regression seen in at least Windows and Linux - see
http://crbug.com/674429

BUG=674429

Original issue's description:
> Revert "Disable local background equivalence when we have a box shadow due to
painting bug."
>
> This reverts commit a12e7a002f85301bf013b45e6e8bb61455304a76.
>
> BUG=646464
>
> TEST=Visit http://output.jsbin.com/vucefi, confirm that both boxes have
> box shadows and the first box has sub-pixel AA text
>
> Committed: https://crrev.com/c765a85995920f79d3132e06a2c146316b823c3f
> Cr-Commit-Position: refs/heads/master@{#438020}

TBR=wangxianzhu@chromium.org,chrishtr@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=646464

Committed: https://crrev.com/4baddb7eb1745ba1f39697e89e303805f90efe16
Cr-Commit-Position: refs/heads/master@{#438897}
==========

[commit-bot: I haz the power, 2016-12-15 19:52:55]

Patchset 1 (id:??) landed as
https://crrev.com/4baddb7eb1745ba1f39697e89e303805f90efe16
Cr-Commit-Position: refs/heads/master@{#438897}