Only include unique files in generated ComputedStyleBase.h

Only include unique files in generated ComputedStyleBase.h

Currently files included in ComputedStyleBase.h can be duplicated. When
we introduce platform types, we expect lots of duplicate includes.
Duplicates don't won't break things, but does slow down compilation.
This patch makes sure that the include files are unique and sorted
alphabetically.

As a nice side-effect, we can remove type_path from the Field class
since it's only used to obtain the include files.

BUG=628043
Review-Url: https://codereview.chromium.org/2692943006
Cr-Commit-Position: refs/heads/master@{#451554}
Committed: https://chromium.googlesource.com/chromium/src/+/97670d39c3a534c68f5ec0131c6baefbccc99602

[shend, 2017-02-14 02:45:18]

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

[shend, 2017-02-14 02:45:18]

Hi Bugs, PTAL :)

[Bugs Nash, 2017-02-14 02:59:41]

lgtm

[shend, 2017-02-14 03:01:20]

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

[shend, 2017-02-14 03:01:20]

Hi Eddy PTAL :)

[meade_UTC10, 2017-02-15 05:53:13]

lgtm

[shend, 2017-02-16 06:39:56]

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

[commit-bot: I haz the power, 2017-02-16 06:40:30]

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, 2017-02-16 10:31:16]

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

[commit-bot: I haz the power, 2017-02-16 10:31:17]

Dry run: This issue passed the CQ dry run.

[shend, 2017-02-20 01:51:37]

The CQ bit was checked by shend@chromium.org

[shend, 2017-02-20 01:51:38]

The patchset sent to the CQ was uploaded after l-g-t-m from meade@chromium.org,
bugsnash@chromium.org
Link to the patchset: https://codereview.chromium.org/2692943006/#ps80002
(title: "Rebase")

[commit-bot: I haz the power, 2017-02-20 01:51:46]

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, 2017-02-20 03:36:38]

CQ is committing da patch.

Bot data: {"patchset_id": 80002, "attempt_start_ts": 1487555497682010,
"parent_rev": "5be54bc052aa86942223ddf77cf035389bfe943d", "commit_rev":
"97670d39c3a534c68f5ec0131c6baefbccc99602"}

[commit-bot: I haz the power, 2017-02-20 03:37:21]

Description was changed from

==========
Only include unique files in generated ComputedStyleBase.h

Currently files included in ComputedStyleBase.h can be duplicated. When
we introduce platform types, we expect lots of duplicate includes.
Duplicates don't won't break things, but does slow down compilation.
This patch makes sure that the include files are unique and sorted
alphabetically.

As a nice side-effect, we can remove type_path from the Field class
since it's only used to obtain the include files.

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

to

==========
Only include unique files in generated ComputedStyleBase.h

Currently files included in ComputedStyleBase.h can be duplicated. When
we introduce platform types, we expect lots of duplicate includes.
Duplicates don't won't break things, but does slow down compilation.
This patch makes sure that the include files are unique and sorted
alphabetically.

As a nice side-effect, we can remove type_path from the Field class
since it's only used to obtain the include files.

BUG=628043

Review-Url: https://codereview.chromium.org/2692943006
Cr-Commit-Position: refs/heads/master@{#451554}
Committed:
https://chromium.googlesource.com/chromium/src/+/97670d39c3a534c68f5ec0131c6b...
==========

[commit-bot: I haz the power, 2017-02-20 03:37:23]

Committed patchset #6 (id:80002) as
https://chromium.googlesource.com/chromium/src/+/97670d39c3a534c68f5ec0131c6b...