ui_touch_selection_unittests.isolate: Don't bundle osmesa on Win and Mac.

ui_touch_selection_unittests.isolate: Don't bundle osmesa on Win and Mac.

The build target doesn't depend on it, so there's a chance that the file doesn't
exist yet when the isolate step runs.  Since it kind of looks like this is only
here due to a copy-paste error, removing the file from the isolate rather than
adding a dependency.

BUG=98637
Committed: https://crrev.com/3dc33bd5214a94b2f206950980b09bf6218eec7e
Cr-Commit-Position: refs/heads/master@{#313293}

[Nico, 2015-01-26 17:18:09]

thakis@chromium.org changed reviewers:
+ jochen@chromium.org

[Nico, 2015-01-26 17:18:09]

\noideanico{}

[jochen (gone - plz use gerrit), 2015-01-27 09:55:05]

lgtm

[Nico, 2015-01-27 17:12:41]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2015-01-27 17:13:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/880573002/1

[commit-bot: I haz the power, 2015-01-27 17:17:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-27 17:18:01]

Patchset 1 (id:??) landed as
https://crrev.com/3dc33bd5214a94b2f206950980b09bf6218eec7e
Cr-Commit-Position: refs/heads/master@{#313293}