Convert events_unittests to run exclusively on Swarming

Convert events_unittests to run exclusively on Swarming

3 configs already ran on Swarming
16 used to run locally and were converted:
- chromium.chromiumos.json: Linux ChromiumOS Ozone Tests (1)
- chromium.chromiumos.json: Linux ChromiumOS Tests (1)
- chromium.chromiumos.json: Linux ChromiumOS Tests (dbg)(1)
- chromium.fyi.json: Linux Trusty
- chromium.fyi.json: Linux Trusty (dbg)
- chromium.memory.fyi.json: Linux ChromeOS MSan Tests
- chromium.memory.fyi.json: Linux MSan Tests
- chromium.memory.fyi.json: Linux TSan Tests
- chromium.memory.json: Linux Chromium OS ASan LSan Tests (1)
- chromium.webkit.json: Linux ChromiumOS Tests (1)
- chromium.webkit.json: Linux ChromiumOS Tests (dbg)(1)
- chromium.win.json: Vista Tests (1)
- chromium.win.json: Win 7 Tests x64 (1)
- chromium.win.json: Win7 Tests (1)
- chromium.win.json: Win7 Tests (dbg)(1)
- chromium.win.json: XP Tests (1)

Ran:
  ./manage.py --convert events_unittests

R=dpranke@chromium.org
BUG=98637
Committed: https://crrev.com/a6863b14f22a7c44b9cf525b3c0ca56b23cf42b9
Cr-Commit-Position: refs/heads/master@{#336233}

[M-A Ruel, 2015-06-23 20:30:47]

I'm pretty sure this one will blow up but I'll try to just revert the ones that
fail so it can be fixed incrementally from there.

[Dirk Pranke, 2015-06-23 20:32:23]

lgtm

[M-A Ruel, 2015-06-23 20:33:37]

The CQ bit was checked by maruel@chromium.org

[commit-bot: I haz the power, 2015-06-23 20:34:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1199273002/1

[commit-bot: I haz the power, 2015-06-23 20:44:42]

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

[commit-bot: I haz the power, 2015-06-23 20:44:43]

Try jobs failed on following builders:
  win8_chromium_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win8_chromium_ng/...)

[M-A Ruel, 2015-06-25 18:28:20]

The CQ bit was checked by maruel@chromium.org

[M-A Ruel, 2015-06-25 18:28:20]

The patchset sent to the CQ was uploaded after l-g-t-m from dpranke@chromium.org
Link to the patchset: https://codereview.chromium.org/1199273002/#ps20001
(title: "Remove Win8 Aura")

[commit-bot: I haz the power, 2015-06-25 18:29:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1199273002/20001

[commit-bot: I haz the power, 2015-06-25 19:46:48]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-06-25 19:47:31]

Patchset 2 (id:??) landed as
https://crrev.com/a6863b14f22a7c44b9cf525b3c0ca56b23cf42b9
Cr-Commit-Position: refs/heads/master@{#336233}