Remove dead code processing wheel gesture phase.

Remove dead code processing wheel gesture phase.

This code dates back to WebKit with the scroll tree
handling mouse wheel events. The calling code was
eventually removed yet these functions remained.

BUG=625684
Committed: https://crrev.com/3b35a48fdbcd6de3457f979fd8b873eb27935371
Cr-Commit-Position: refs/heads/master@{#435789}

[dtapuska, 2016-12-01 20:49:57]

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

[commit-bot: I haz the power, 2016-12-01 20:50:18]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[dtapuska, 2016-12-01 20:50:48]

dtapuska@chromium.org changed reviewers:
+ bokan@chromium.org, jbroman@chromium.org

[bokan, 2016-12-01 20:51:55]

nice find, lgtm

[jbroman, 2016-12-01 21:08:52]

lgtm

[dtapuska, 2016-12-01 21:09:25]

The CQ bit was unchecked by dtapuska@chromium.org

[dtapuska, 2016-12-01 21:09:26]

The CQ bit was checked by dtapuska@chromium.org

[commit-bot: I haz the power, 2016-12-01 21:09:51]

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, 2016-12-02 00:22:15]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480626566218510, "parent_rev":
"91e089a563c830f7396004b8369b7607e6511bc5", "commit_rev":
"0bb0fca6393064528733dfe2cbab07b209049d6b"}

[commit-bot: I haz the power, 2016-12-02 00:22:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-02 00:24:12]

Description was changed from

==========
Remove dead code processing wheel gesture phase.

This code dates back to WebKit with the scroll tree
handling mouse wheel events. The calling code was
eventually removed yet these functions remained.

BUG=625684
==========

to

==========
Remove dead code processing wheel gesture phase.

This code dates back to WebKit with the scroll tree
handling mouse wheel events. The calling code was
eventually removed yet these functions remained.

BUG=625684

Committed: https://crrev.com/3b35a48fdbcd6de3457f979fd8b873eb27935371
Cr-Commit-Position: refs/heads/master@{#435789}
==========

[commit-bot: I haz the power, 2016-12-02 00:24:13]

Patchset 1 (id:??) landed as
https://crrev.com/3b35a48fdbcd6de3457f979fd8b873eb27935371
Cr-Commit-Position: refs/heads/master@{#435789}