Reland of Fold compositing display items into contained drawings if the drawing is a singleton.

Reland of Fold compositing display items into contained drawings if the drawing is a singleton.

Original issue's description:
> Fold compositing display items into contained drawings if the drawing is a singleton.
>
> BUG=628831
>
> Committed: https://crrev.com/09f3b178cfb677eaaf91a282df0d898a041378cd
> Cr-Commit-Position: refs/heads/master@{#408725}

This reverts patchset #7 id:110001 of https://codereview.chromium.org/2186643002/
(46344c2a474c1599c6cbc44297a1b9afcae04bb6).

Change on the original CL:
- During under-invalidation checking, allow invalidated display items
  in cached subsequence as long as they are the same as the the cached
  display items. This is to support skipped-cache display items in a
  cached subsequence.
- Added an under-invalidation checking test for compositing drawing
  folding in cached subsequence.

Committed: https://crrev.com/b4169ff2158e3aaecb6c90dcd49452ae6191eeca
Cr-Commit-Position: refs/heads/master@{#409004}

[Xianzhu, 2016-08-01 17:12:36]

Description was changed from

==========
Reland of Fold compositing display items into contained drawings if the drawing
is a singleton.

Original issue's description:
> Fold compositing display items into contained drawings if the drawing is a
singleton.
>
> BUG=628831
>
> Committed: https://crrev.com/09f3b178cfb677eaaf91a282df0d898a041378cd
> Cr-Commit-Position: refs/heads/master@{#408725}

This reverts patchset #7 id:110001 of
https://codereview.chromium.org/2186643002/
(46344c2a474c1599c6cbc44297a1b9afcae04bb6).
==========

to

==========
Reland of Fold compositing display items into contained drawings if the drawing
is a singleton.

Original issue's description:
> Fold compositing display items into contained drawings if the drawing is a
singleton.
>
> BUG=628831
>
> Committed: https://crrev.com/09f3b178cfb677eaaf91a282df0d898a041378cd
> Cr-Commit-Position: refs/heads/master@{#408725}

This reverts patchset #7 id:110001 of
https://codereview.chromium.org/2186643002/
(46344c2a474c1599c6cbc44297a1b9afcae04bb6).

Change on the original CL:
- During under-invalidation checking, allow invalidated display items
  in cached subsequence as long as they are the same as the the cached
  display items. This is to support skipped-cache display items in a
  cached subsequence.
- Added an under-invalidation checking test for compositing drawing
  folding in cached subsequence.
==========

[Xianzhu, 2016-08-01 17:12:49]

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

[chrishtr, 2016-08-01 17:22:18]

The CQ bit was checked by chrishtr@chromium.org

[chrishtr, 2016-08-01 17:22:19]

lgtm

[commit-bot: I haz the power, 2016-08-01 17:22:45]

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, 2016-08-01 18:40:46]

Description was changed from

==========
Reland of Fold compositing display items into contained drawings if the drawing
is a singleton.

Original issue's description:
> Fold compositing display items into contained drawings if the drawing is a
singleton.
>
> BUG=628831
>
> Committed: https://crrev.com/09f3b178cfb677eaaf91a282df0d898a041378cd
> Cr-Commit-Position: refs/heads/master@{#408725}

This reverts patchset #7 id:110001 of
https://codereview.chromium.org/2186643002/
(46344c2a474c1599c6cbc44297a1b9afcae04bb6).

Change on the original CL:
- During under-invalidation checking, allow invalidated display items
  in cached subsequence as long as they are the same as the the cached
  display items. This is to support skipped-cache display items in a
  cached subsequence.
- Added an under-invalidation checking test for compositing drawing
  folding in cached subsequence.
==========

to

==========
Reland of Fold compositing display items into contained drawings if the drawing
is a singleton.

Original issue's description:
> Fold compositing display items into contained drawings if the drawing is a
singleton.
>
> BUG=628831
>
> Committed: https://crrev.com/09f3b178cfb677eaaf91a282df0d898a041378cd
> Cr-Commit-Position: refs/heads/master@{#408725}

This reverts patchset #7 id:110001 of
https://codereview.chromium.org/2186643002/
(46344c2a474c1599c6cbc44297a1b9afcae04bb6).

Change on the original CL:
- During under-invalidation checking, allow invalidated display items
  in cached subsequence as long as they are the same as the the cached
  display items. This is to support skipped-cache display items in a
  cached subsequence.
- Added an under-invalidation checking test for compositing drawing
  folding in cached subsequence.
==========

[commit-bot: I haz the power, 2016-08-01 18:40:47]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-08-01 18:43:00]

Description was changed from

==========
Reland of Fold compositing display items into contained drawings if the drawing
is a singleton.

Original issue's description:
> Fold compositing display items into contained drawings if the drawing is a
singleton.
>
> BUG=628831
>
> Committed: https://crrev.com/09f3b178cfb677eaaf91a282df0d898a041378cd
> Cr-Commit-Position: refs/heads/master@{#408725}

This reverts patchset #7 id:110001 of
https://codereview.chromium.org/2186643002/
(46344c2a474c1599c6cbc44297a1b9afcae04bb6).

Change on the original CL:
- During under-invalidation checking, allow invalidated display items
  in cached subsequence as long as they are the same as the the cached
  display items. This is to support skipped-cache display items in a
  cached subsequence.
- Added an under-invalidation checking test for compositing drawing
  folding in cached subsequence.
==========

to

==========
Reland of Fold compositing display items into contained drawings if the drawing
is a singleton.

Original issue's description:
> Fold compositing display items into contained drawings if the drawing is a
singleton.
>
> BUG=628831
>
> Committed: https://crrev.com/09f3b178cfb677eaaf91a282df0d898a041378cd
> Cr-Commit-Position: refs/heads/master@{#408725}

This reverts patchset #7 id:110001 of
https://codereview.chromium.org/2186643002/
(46344c2a474c1599c6cbc44297a1b9afcae04bb6).

Change on the original CL:
- During under-invalidation checking, allow invalidated display items
  in cached subsequence as long as they are the same as the the cached
  display items. This is to support skipped-cache display items in a
  cached subsequence.
- Added an under-invalidation checking test for compositing drawing
  folding in cached subsequence.

Committed: https://crrev.com/b4169ff2158e3aaecb6c90dcd49452ae6191eeca
Cr-Commit-Position: refs/heads/master@{#409004}
==========

[commit-bot: I haz the power, 2016-08-01 18:43:01]

Patchset 2 (id:??) landed as
https://crrev.com/b4169ff2158e3aaecb6c90dcd49452ae6191eeca
Cr-Commit-Position: refs/heads/master@{#409004}