Sandbox: Reenable test that was flaking for being too slow.

Sandbox: Reenable test that was flaking for being too slow.

The timeouts were increased long time ago so presumably this test should not
fail anymore.

There is no information about why UnloadAviCapDllWithPatching was flaky, but
I'm assuming the same cause of the other two unload tests.

BUG=38404, 137652
Committed: https://crrev.com/1cab7911d131799caf704a276b3cac29b1dc8fb3
Cr-Commit-Position: refs/heads/master@{#343501}

[rvargas (doing something else), 2015-08-14 20:07:00]

rvargas@chromium.org changed reviewers:
+ jschuh@chromium.org

[rvargas (doing something else), 2015-08-14 20:07:00]

PTAL

[jschuh, 2015-08-14 21:14:47]

lgtm

[rvargas (doing something else), 2015-08-14 21:36:54]

The CQ bit was checked by rvargas@chromium.org

[commit-bot: I haz the power, 2015-08-14 21:37:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1299503002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1299503002/1

[commit-bot: I haz the power, 2015-08-14 21:42:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-14 21:43:20]

Patchset 1 (id:??) landed as
https://crrev.com/1cab7911d131799caf704a276b3cac29b1dc8fb3
Cr-Commit-Position: refs/heads/master@{#343501}