Remove obsolete code that invalidates document element on LayoutView resize

Remove obsolete code that invalidates document element on LayoutView resize

The code was needed when the document element painted viewport
background. Now ViewPainter paint viewport background, and we invalidate
LayoutView itself on its resize.

BUG=475115
Committed: https://crrev.com/1bddf0ae1615f5c67ca034d7e08dfdb1ea5846c4
Cr-Commit-Position: refs/heads/master@{#430097}

[Xianzhu, 2016-11-04 20:25:23]

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

[commit-bot: I haz the power, 2016-11-04 20:26:03]

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

[Xianzhu, 2016-11-04 20:26:57]

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

[commit-bot: I haz the power, 2016-11-04 20:27:50]

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

[Xianzhu, 2016-11-04 21:42:49]

Description was changed from

==========
Remove obsolete code that invalidate document element on LayoutView resize

The code was needed when the document element painted viewport
background. Now ViewPainter paint viewport background, and we invalidate
LayoutView itself on its resize.

BUG=475115
==========

to

==========
Remove obsolete code that invalidates document element on LayoutView resize

The code was needed when the document element painted viewport
background. Now ViewPainter paint viewport background, and we invalidate
LayoutView itself on its resize.

BUG=475115
==========

[Xianzhu, 2016-11-04 21:47:05]

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

[chrishtr, 2016-11-04 22:33:57]

Looks good to me. Please double-check with Tien-Ren that the hypothesis is
correct.

[trchen, 2016-11-04 22:47:18]

lgtm. The deleted code is wrong for many reasons. The only worry I have is there
may be under-invalidation previously shadowed by this code. (Which we should fix
anyway.)

[commit-bot: I haz the power, 2016-11-04 22:57:54]

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

[commit-bot: I haz the power, 2016-11-04 22:57:54]

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_...)

[Xianzhu, 2016-11-04 23:14:27]

The CQ bit was checked by wangxianzhu@chromium.org

[Xianzhu, 2016-11-04 23:14:27]

The patchset sent to the CQ was uploaded after l-g-t-m from trchen@chromium.org
Link to the patchset: https://codereview.chromium.org/2483483003/#ps40001
(title: "Rebaseline-cl")

[commit-bot: I haz the power, 2016-11-04 23:15:30]

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, 2016-11-05 00:44:38]

Description was changed from

==========
Remove obsolete code that invalidates document element on LayoutView resize

The code was needed when the document element painted viewport
background. Now ViewPainter paint viewport background, and we invalidate
LayoutView itself on its resize.

BUG=475115
==========

to

==========
Remove obsolete code that invalidates document element on LayoutView resize

The code was needed when the document element painted viewport
background. Now ViewPainter paint viewport background, and we invalidate
LayoutView itself on its resize.

BUG=475115
==========

[commit-bot: I haz the power, 2016-11-05 00:44:39]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-11-05 00:47:51]

Description was changed from

==========
Remove obsolete code that invalidates document element on LayoutView resize

The code was needed when the document element painted viewport
background. Now ViewPainter paint viewport background, and we invalidate
LayoutView itself on its resize.

BUG=475115
==========

to

==========
Remove obsolete code that invalidates document element on LayoutView resize

The code was needed when the document element painted viewport
background. Now ViewPainter paint viewport background, and we invalidate
LayoutView itself on its resize.

BUG=475115

Committed: https://crrev.com/1bddf0ae1615f5c67ca034d7e08dfdb1ea5846c4
Cr-Commit-Position: refs/heads/master@{#430097}
==========

[commit-bot: I haz the power, 2016-11-05 00:47:52]

Patchset 3 (id:??) landed as
https://crrev.com/1bddf0ae1615f5c67ca034d7e08dfdb1ea5846c4
Cr-Commit-Position: refs/heads/master@{#430097}

[Xianzhu, 2017-01-13 20:32:28]

A revert of this CL (patchset #3 id:40001) has been created in
https://codereview.chromium.org/2634613002/ by wangxianzhu@chromium.org.

The reason for reverting is: Caused bug 680745. Revert first and then work on
the correct fix.

BUG=680745.