Use PositionInFlatTreeWithAffinty for SelectionController::original_base_in_flat_tree_

Use PositionInFlatTreeWithAffinty for SelectionController::original_base_in_flat_tree_

This patch changes type of |SelectionController::original_base_in_flat_tree_|
to |PositionInFlatTreeWithAffinty| instead of |VisbilePositionInFlatTree|
to avoid redundant usage of |VisbilePositionInFlatTree| for improving code
health.

BUG=657237
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2971563002
Cr-Commit-Position: refs/heads/master@{#483971}
Committed: https://chromium.googlesource.com/chromium/src/+/d7a8c49ba1d99cfb63d63cf99840b99317366cdd

[yosin_UTC9, 2017-07-03 07:50:26]

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

[commit-bot: I haz the power, 2017-07-03 07:50:38]

Dry run: CQ is trying da patch.

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

[yosin_UTC9, 2017-07-03 07:53:11]

Description was changed from

==========
2017-07-03T16:48:36

BUG=657237

2017-07-03T16:48:31
==========

to

==========
Use PositionInFlatTreeWithAffinty for
SelectionController::original_base_in_flat_tree_

This patch changes type of |SelectionController::original_base_in_flat_tree_|
to |PositionInFlatTreeWithAffinty| instead of |VisbilePositionInFlatTree|
to avoid redundant usage of |VisbilePositionInFlatTree| for improving code
health.

BUG=657237
TEST=n/a; no behavior changes
==========

[yosin_UTC9, 2017-07-03 08:47:59]

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

[yosin_UTC9, 2017-07-03 08:48:00]

PTAL

[yoichio, 2017-07-03 09:21:22]

lgtm

[yosin_UTC9, 2017-07-03 09:30:10]

The CQ bit was unchecked by yosin@chromium.org

[yosin_UTC9, 2017-07-03 09:30:12]

The CQ bit was checked by yosin@chromium.org

[commit-bot: I haz the power, 2017-07-03 09:30:27]

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, 2017-07-03 09:43:10]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1499074212351450, "parent_rev":
"8009f9df21b553ab113f86a512409656d6e86e17", "commit_rev":
"d7a8c49ba1d99cfb63d63cf99840b99317366cdd"}

[commit-bot: I haz the power, 2017-07-03 09:43:24]

Description was changed from

==========
Use PositionInFlatTreeWithAffinty for
SelectionController::original_base_in_flat_tree_

This patch changes type of |SelectionController::original_base_in_flat_tree_|
to |PositionInFlatTreeWithAffinty| instead of |VisbilePositionInFlatTree|
to avoid redundant usage of |VisbilePositionInFlatTree| for improving code
health.

BUG=657237
TEST=n/a; no behavior changes
==========

to

==========
Use PositionInFlatTreeWithAffinty for
SelectionController::original_base_in_flat_tree_

This patch changes type of |SelectionController::original_base_in_flat_tree_|
to |PositionInFlatTreeWithAffinty| instead of |VisbilePositionInFlatTree|
to avoid redundant usage of |VisbilePositionInFlatTree| for improving code
health.

BUG=657237
TEST=n/a; no behavior changes

Review-Url: https://codereview.chromium.org/2971563002
Cr-Commit-Position: refs/heads/master@{#483971}
Committed:
https://chromium.googlesource.com/chromium/src/+/d7a8c49ba1d99cfb63d63cf99840...
==========

[commit-bot: I haz the power, 2017-07-03 09:43:25]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/d7a8c49ba1d99cfb63d63cf99840...