Make SelectionState enum class

Make SelectionState enum class

This CL mainly changes core/layout/api/SelectionState.*.
We won't increase the enum members so just go straight forward definition
 not using macro.
Also this CL changes SelectionStateBoth to SelectionState::kStartAndEnd
 because we have 5 members and 'both' is ambiguous. 

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2916493002
Cr-Commit-Position: refs/heads/master@{#475853}
Committed: https://chromium.googlesource.com/chromium/src/+/12d918f97bd71b6e0d6e70ee480d000f769da669

[yoichio, 2017-05-31 04:28:39]

Description was changed from

==========
Make SelectionState enum class

BUG=
==========

to

==========
Make SelectionState enum class

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[yoichio, 2017-05-31 04:29:28]

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

[commit-bot: I haz the power, 2017-05-31 04:29:46]

Dry run: CQ is trying da patch.

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

[yoichio, 2017-05-31 05:28:06]

Description was changed from

==========
Make SelectionState enum class

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Make SelectionState enum class

This CL mainly changes core/layout/api/SelectionState.*.
We won't increase the enum members so just go straight forward definition
 not using macro.
Also this CL changes SelectionStateBoth to SelectionState::kStartAndEnd
 because we have 5 members and 'both' is ambiguous. 

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

[yoichio, 2017-05-31 05:28:06]

yoichio@chromium.org changed reviewers:
+ yosin@chromium.org

[yoichio, 2017-05-31 05:28:29]

yoichio@chromium.org changed reviewers:
+ kojii@chromium.org

[commit-bot: I haz the power, 2017-05-31 05:29:19]

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

[commit-bot: I haz the power, 2017-05-31 05:29:20]

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_...)

[kojii, 2017-05-31 05:48:56]

lgtm

[yosin_UTC9, 2017-05-31 05:55:50]

lgtm
Thanks!

[yoichio, 2017-05-31 07:00:11]

The CQ bit was checked by yoichio@chromium.org

[commit-bot: I haz the power, 2017-05-31 07:00:26]

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, 2017-05-31 09:09:52]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1496214011296110, "parent_rev":
"b4637d2197e8ea48a2b3825a3a5d777c87c84411", "commit_rev":
"12d918f97bd71b6e0d6e70ee480d000f769da669"}

[commit-bot: I haz the power, 2017-05-31 09:10:02]

Description was changed from

==========
Make SelectionState enum class

This CL mainly changes core/layout/api/SelectionState.*.
We won't increase the enum members so just go straight forward definition
 not using macro.
Also this CL changes SelectionStateBoth to SelectionState::kStartAndEnd
 because we have 5 members and 'both' is ambiguous. 

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Make SelectionState enum class

This CL mainly changes core/layout/api/SelectionState.*.
We won't increase the enum members so just go straight forward definition
 not using macro.
Also this CL changes SelectionStateBoth to SelectionState::kStartAndEnd
 because we have 5 members and 'both' is ambiguous. 

BUG=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2916493002
Cr-Commit-Position: refs/heads/master@{#475853}
Committed:
https://chromium.googlesource.com/chromium/src/+/12d918f97bd71b6e0d6e70ee480d...
==========

[commit-bot: I haz the power, 2017-05-31 09:10:03]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/12d918f97bd71b6e0d6e70ee480d...