[Mac] Re-enable AppShimInteractiveTest.Launch (again).

[Mac] Re-enable AppShimInteractiveTest.Launch (again).

The flakiness only occurs on ASan builds. The test times out because the
shim does not successfully launch when the app launches.
LSOpenApplication returns procNotFound(-600). It's not clear why this
happens, but it could be some interaction with WaitForSingleProcess.

Reversing the order of the two test cases fixes the flakiness.

BUG=415422
Committed: https://crrev.com/c2a8eb06daad25e87595b64c27540a5d52646e91
Cr-Commit-Position: refs/heads/master@{#296389}

[jackhou1, 2014-09-24 10:34:54]

jackhou@chromium.org changed reviewers:
+ tapted@chromium.org

[tapted, 2014-09-24 10:54:00]

sweet! lgtm

[jackhou1, 2014-09-24 11:15:24]

The CQ bit was checked by jackhou@chromium.org

[commit-bot: I haz the power, 2014-09-24 11:16:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/597113003/1

[commit-bot: I haz the power, 2014-09-24 11:50:28]

Committed patchset #1 (id:1) as c0abb9a260f5b13aa6a314b633423b304ec63c1e

[commit-bot: I haz the power, 2014-09-24 11:51:04]

Patchset 1 (id:??) landed as
https://crrev.com/c2a8eb06daad25e87595b64c27540a5d52646e91
Cr-Commit-Position: refs/heads/master@{#296389}