Reland of un compositing/ and paint/ for disable-spinvalidation

Reland of un compositing/ and paint/ for disable-spinvalidation (patchset #1 id:1 of https://codereview.chromium.org/2756433002/ )

Reason for revert:
The failing test just needs a rebaseline, or it's flaky unrelated to the CL.

Original issue's description:
> Revert of Run compositing/ and paint/ for disable-spinvalidation (patchset #3 id:40001 of https://codereview.chromium.org/2750943002/ )
> 
> Reason for revert:
> Caused failure on https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7%20%28dbg%29/builds/9279
> 
> 20:01:44.340 2964 [657/51934] virtual/disable-spinvalidation/compositing/perpendicular-layer-sorting.html failed unexpectedly (image diff)
> 20:01:44.334 1652 worker/3 virtual/disable-spinvalidation/compositing/perpendicular-layer-sorting.html failed:
> 20:01:44.334 1652 worker/3  image diff
> 
> 
> Original issue's description:
> > Run compositing/ and paint/ for disable-spinvalidation
> > 
> > This is to increase test coverage for disable-spinvalidation to reduce
> > risk of breaking it.
> > 
> > Total number of virtual/disable-spinvalidation tests is 1676
> > (was 913 previously).
> > 
> > Review-Url: https://codereview.chromium.org/2750943002
> > Cr-Commit-Position: refs/heads/master@{#456939}
> > Committed: https://chromium.googlesource.com/chromium/src/+/becaabeceb9fbb249e4c7a72b85f4f20cd826f95
> 
> TBR=chrishtr@chromium.org,pdr@chromium.org,wangxianzhu@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2756433002
> Cr-Commit-Position: refs/heads/master@{#457052}
> Committed: https://chromium.googlesource.com/chromium/src/+/571b63355d05baec5383a3a297d1b72315296f4a

TBR=chrishtr@chromium.org,pdr@chromium.org,grunell@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2748343002
Cr-Commit-Position: refs/heads/master@{#457096}
Committed: https://chromium.googlesource.com/chromium/src/+/c9af99aa1d6d8caec1992e0f62f37e3cf54296ac

[Xianzhu, 2017-03-15 15:52:12]

Created Reland of un compositing/ and paint/ for disable-spinvalidation

[Xianzhu, 2017-03-15 15:59:52]

Rebaselining of the
virtual/disable-spinvalidation/compositing/perpendicular-layer-sorting.html
produced no result, indicating that the test is flaky. Marked it as flaky in
TestExpectations.

As this CL just increases test coverage, and the test only produces 1 pixel
difference when it fails, we will just keep the flaky expectation until we
remove disable-spinvalidation.

[Xianzhu, 2017-03-15 16:00:38]

The CQ bit was checked by wangxianzhu@chromium.org

[commit-bot: I haz the power, 2017-03-15 16:00:53]

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, 2017-03-15 16:03:32]

CQ is committing da patch.

Bot data: {"patchset_id": 280001, "attempt_start_ts": 1489593638031140,
"parent_rev": "60342f909a23901f9c4d6f0eff32576d682e959f", "commit_rev":
"c9af99aa1d6d8caec1992e0f62f37e3cf54296ac"}

[commit-bot: I haz the power, 2017-03-15 16:04:11]

Description was changed from

==========
Reland of un compositing/ and paint/ for disable-spinvalidation (patchset #1
id:1 of https://codereview.chromium.org/2756433002/ )

Reason for revert:
The failing test just needs a rebaseline, or it's flaky unrelated to the CL.

Original issue's description:
> Revert of Run compositing/ and paint/ for disable-spinvalidation (patchset #3
id:40001 of https://codereview.chromium.org/2750943002/ )
> 
> Reason for revert:
> Caused failure on
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7%20%28dbg%...
> 
> 20:01:44.340 2964 [657/51934]
virtual/disable-spinvalidation/compositing/perpendicular-layer-sorting.html
failed unexpectedly (image diff)
> 20:01:44.334 1652 worker/3
virtual/disable-spinvalidation/compositing/perpendicular-layer-sorting.html
failed:
> 20:01:44.334 1652 worker/3  image diff
> 
> 
> Original issue's description:
> > Run compositing/ and paint/ for disable-spinvalidation
> > 
> > This is to increase test coverage for disable-spinvalidation to reduce
> > risk of breaking it.
> > 
> > Total number of virtual/disable-spinvalidation tests is 1676
> > (was 913 previously).
> > 
> > Review-Url: https://codereview.chromium.org/2750943002
> > Cr-Commit-Position: refs/heads/master@{#456939}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/becaabeceb9fbb249e4c7a72b85f...
> 
> TBR=chrishtr@chromium.org,pdr@chromium.org,wangxianzhu@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2756433002
> Cr-Commit-Position: refs/heads/master@{#457052}
> Committed:
https://chromium.googlesource.com/chromium/src/+/571b63355d05baec5383a3a297d1...

TBR=chrishtr@chromium.org,pdr@chromium.org,grunell@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Reland of un compositing/ and paint/ for disable-spinvalidation (patchset #1
id:1 of https://codereview.chromium.org/2756433002/ )

Reason for revert:
The failing test just needs a rebaseline, or it's flaky unrelated to the CL.

Original issue's description:
> Revert of Run compositing/ and paint/ for disable-spinvalidation (patchset #3
id:40001 of https://codereview.chromium.org/2750943002/ )
> 
> Reason for revert:
> Caused failure on
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7%20%28dbg%...
> 
> 20:01:44.340 2964 [657/51934]
virtual/disable-spinvalidation/compositing/perpendicular-layer-sorting.html
failed unexpectedly (image diff)
> 20:01:44.334 1652 worker/3
virtual/disable-spinvalidation/compositing/perpendicular-layer-sorting.html
failed:
> 20:01:44.334 1652 worker/3  image diff
> 
> 
> Original issue's description:
> > Run compositing/ and paint/ for disable-spinvalidation
> > 
> > This is to increase test coverage for disable-spinvalidation to reduce
> > risk of breaking it.
> > 
> > Total number of virtual/disable-spinvalidation tests is 1676
> > (was 913 previously).
> > 
> > Review-Url: https://codereview.chromium.org/2750943002
> > Cr-Commit-Position: refs/heads/master@{#456939}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/becaabeceb9fbb249e4c7a72b85f...
> 
> TBR=chrishtr@chromium.org,pdr@chromium.org,wangxianzhu@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2756433002
> Cr-Commit-Position: refs/heads/master@{#457052}
> Committed:
https://chromium.googlesource.com/chromium/src/+/571b63355d05baec5383a3a297d1...

TBR=chrishtr@chromium.org,pdr@chromium.org,grunell@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2748343002
Cr-Commit-Position: refs/heads/master@{#457096}
Committed:
https://chromium.googlesource.com/chromium/src/+/c9af99aa1d6d8caec1992e0f62f3...
==========

[commit-bot: I haz the power, 2017-03-15 16:04:12]

Committed patchset #2 (id:280001) as
https://chromium.googlesource.com/chromium/src/+/c9af99aa1d6d8caec1992e0f62f3...