Generate StyleBackgroundData in ComputedStyleBase.

Generate StyleBackgroundData in ComputedStyleBase.

This patch generates the following fields as part of a group:
- background ('storage_only' of type FillLayer)
- background_color ('storage_only' of type Color)

Since both fields correspond to shorthands, we specify them in
ComputedStyleExtraFields.json5.

Diff of generated files:
https://gist.github.com/darrnshn/48a62d4ef7efe9f7a8c2b707eb57644f/revisions

BUG=628043
Review-Url: https://codereview.chromium.org/2841433002
Cr-Commit-Position: refs/heads/master@{#467561}
Committed: https://chromium.googlesource.com/chromium/src/+/9cd2845fb2b733d9d3852839d47f4dc93bdec090

[shend, 2017-04-24 04:11:53]

Description was changed from

==========
Generate StyleBackgroundData in ComputedStyleBase.

This patch generates the following fields as part of a group:
- background ('storage_only' of type FillLayer)
- background_color ('storage_only' of type Color)

Since both fields correspond to shorthands, we specify them in
ComputedStyleExtraFields.json5.

BUG=628043
==========

to

==========
Generate StyleBackgroundData in ComputedStyleBase.

This patch generates the following fields as part of a group:
- background ('storage_only' of type FillLayer)
- background_color ('storage_only' of type Color)

Since both fields correspond to shorthands, we specify them in
ComputedStyleExtraFields.json5.

Diff of generated files:
https://gist.github.com/darrnshn/48a62d4ef7efe9f7a8c2b707eb57644f/revisions

BUG=628043
==========

[shend, 2017-04-24 04:33:48]

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

[commit-bot: I haz the power, 2017-04-24 04:34:02]

Dry run: CQ is trying da patch.

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

[shend, 2017-04-24 07:15:39]

shend@chromium.org changed reviewers:
+ nainar@chromium.org

[shend, 2017-04-24 07:15:40]

Hi Naina, PTAL :)

[commit-bot: I haz the power, 2017-04-24 07:37:54]

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

[commit-bot: I haz the power, 2017-04-24 07:37:55]

Dry run: Try jobs failed on following builders:
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[nainar, 2017-04-24 09:51:26]

YEAH! \o/ LGTM

[shend, 2017-04-25 23:51:12]

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

[commit-bot: I haz the power, 2017-04-25 23:51:49]

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, 2017-04-26 04:52:16]

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

[commit-bot: I haz the power, 2017-04-26 04:52:17]

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_...)

[shend, 2017-04-26 05:48:05]

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

[commit-bot: I haz the power, 2017-04-26 05:48:28]

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, 2017-04-26 08:25:31]

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

[commit-bot: I haz the power, 2017-04-26 08:25:32]

Dry run: This issue passed the CQ dry run.

[rune, 2017-04-26 09:01:11]

rune@opera.com changed reviewers:
+ rune@opera.com

[rune, 2017-04-26 09:01:11]

rs lgtm

[shend, 2017-04-27 03:04:34]

The CQ bit was checked by shend@chromium.org

[shend, 2017-04-27 03:04:35]

The patchset sent to the CQ was uploaded after l-g-t-m from nainar@chromium.org
Link to the patchset: https://codereview.chromium.org/2841433002/#ps20001
(title: "Rebase")

[commit-bot: I haz the power, 2017-04-27 03:05:01]

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, 2017-04-27 03:08:47]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1493262274801780,
"parent_rev": "5ecb75c280ef3f9b1840a19305d6d9b5482ffe76", "commit_rev":
"9cd2845fb2b733d9d3852839d47f4dc93bdec090"}

[commit-bot: I haz the power, 2017-04-27 03:09:41]

Description was changed from

==========
Generate StyleBackgroundData in ComputedStyleBase.

This patch generates the following fields as part of a group:
- background ('storage_only' of type FillLayer)
- background_color ('storage_only' of type Color)

Since both fields correspond to shorthands, we specify them in
ComputedStyleExtraFields.json5.

Diff of generated files:
https://gist.github.com/darrnshn/48a62d4ef7efe9f7a8c2b707eb57644f/revisions

BUG=628043
==========

to

==========
Generate StyleBackgroundData in ComputedStyleBase.

This patch generates the following fields as part of a group:
- background ('storage_only' of type FillLayer)
- background_color ('storage_only' of type Color)

Since both fields correspond to shorthands, we specify them in
ComputedStyleExtraFields.json5.

Diff of generated files:
https://gist.github.com/darrnshn/48a62d4ef7efe9f7a8c2b707eb57644f/revisions

BUG=628043

Review-Url: https://codereview.chromium.org/2841433002
Cr-Commit-Position: refs/heads/master@{#467561}
Committed:
https://chromium.googlesource.com/chromium/src/+/9cd2845fb2b733d9d3852839d47f...
==========

[commit-bot: I haz the power, 2017-04-27 03:09:42]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/9cd2845fb2b733d9d3852839d47f...

[shend, 2017-05-01 03:58:03]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/2849123002/ by shend@chromium.org.

The reason for reverting is: testing.