exo: Update cursor on wl_pointer::set_cursor

exo: Update cursor on wl_pointer::set_cursor

The cursor scale and rotation must be updated on pointer enter, even
though neither the surface nor the hotspot changed.

BUG=730843
TEST=caroline: Cursor is not stale on pointer enter.

Review-Url: https://codereview.chromium.org/2935753002
Cr-Commit-Position: refs/heads/master@{#478660}
Committed: https://chromium.googlesource.com/chromium/src/+/1a58cb060e6c628db1e36f824bd2c6ed1ec1ae14

[Dominik Laskowski, 2017-06-12 15:53:11]

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

[commit-bot: I haz the power, 2017-06-12 15:53:46]

Dry run: CQ is trying da patch.

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

[Dominik Laskowski, 2017-06-12 15:59:54]

domlaskowski@chromium.org changed reviewers:
+ reveman@chromium.org

[Dominik Laskowski, 2017-06-12 15:59:54]

PTAL. Previously, the client incorrectly forced a surface change on pointer
enter.

[reveman, 2017-06-12 16:12:13]

lgtm

[commit-bot: I haz the power, 2017-06-12 16:25:59]

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

[commit-bot: I haz the power, 2017-06-12 16:26:00]

Dry run: This issue passed the CQ dry run.

[Dominik Laskowski, 2017-06-12 16:34:32]

The CQ bit was checked by domlaskowski@chromium.org

[commit-bot: I haz the power, 2017-06-12 16:34:51]

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, 2017-06-12 16:38:21]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497285272255730, "parent_rev":
"51f2d43236d35f2bfe6b3e5bbe45ffccf42ac39d", "commit_rev":
"1a58cb060e6c628db1e36f824bd2c6ed1ec1ae14"}

[commit-bot: I haz the power, 2017-06-12 16:38:35]

Description was changed from

==========
exo: Update cursor on wl_pointer::set_cursor

The cursor scale and rotation must be updated on pointer enter, even
though neither the surface nor the hotspot changed.

BUG=730843
TEST=caroline: Cursor is not stale on pointer enter.
==========

to

==========
exo: Update cursor on wl_pointer::set_cursor

The cursor scale and rotation must be updated on pointer enter, even
though neither the surface nor the hotspot changed.

BUG=730843
TEST=caroline: Cursor is not stale on pointer enter.

Review-Url: https://codereview.chromium.org/2935753002
Cr-Commit-Position: refs/heads/master@{#478660}
Committed:
https://chromium.googlesource.com/chromium/src/+/1a58cb060e6c628db1e36f824bd2...
==========

[commit-bot: I haz the power, 2017-06-12 16:38:38]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/1a58cb060e6c628db1e36f824bd2...