Revert "Don't hardcode output directory in findbugs.py"

Revert "Don't hardcode output directory in findbugs.py"

This reverts commit 42e7514f5c983268e38ff8773cd6544af081ebab.

It is breaking the bots like this:
https://chromegw.corp.google.com/i/clank/builders/clang-builder/builds/3819
Traceback (most recent call last):
...
Exception: The BUILDTYPE environment variable has not been set

The reason is that the downstream clang-builder uses recipes, and recipes don't
set environment variables between steps. The recipe being used is
android_builder which can be checkout as part of the buildbot code in dir:
build/scripts/slave/recipes/android/.

TBR=andrewhayden@google.com
BUG=357190
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=260458

[navabi, 2014-03-28 23:53:28]

The CQ bit was checked by navabi@google.com

[commit-bot: I haz the power, 2014-03-28 23:57:53]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/navabi@google.com/217893002/1

[commit-bot: I haz the power, 2014-03-29 00:28:06]

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

[commit-bot: I haz the power, 2014-03-29 00:28:07]

Try jobs failed on following builders:
  tryserver.chromium on linux_chromium_rel

[nyquist, 2014-03-29 00:35:36]

The CQ bit was checked by nyquist@chromium.org

[commit-bot: I haz the power, 2014-03-29 00:36:17]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/navabi@google.com/217893002/1

[commit-bot: I haz the power, 2014-03-29 01:45:27]

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

[commit-bot: I haz the power, 2014-03-29 01:45:28]

Try jobs failed on following builders:
  tryserver.chromium on linux_chromium_chromeos_rel

[navabi, 2014-03-29 16:50:49]

The CQ bit was checked by navabi@google.com

[commit-bot: I haz the power, 2014-03-29 16:51:27]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/navabi@google.com/217893002/1

[navabi, 2014-03-29 17:39:09]

The CQ bit was unchecked by navabi@google.com

[navabi, 2014-03-29 17:39:12]

The CQ bit was checked by navabi@google.com

[commit-bot: I haz the power, 2014-03-29 19:31:38]

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

[commit-bot: I haz the power, 2014-03-29 19:31:38]

Try jobs failed on following builders:
  tryserver.chromium on linux_chromium_chromeos_rel

[nyquist, 2014-03-29 21:55:12]

The CQ bit was checked by nyquist@chromium.org

[commit-bot: I haz the power, 2014-03-29 21:55:25]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/navabi@google.com/217893002/1

[commit-bot: I haz the power, 2014-03-29 23:30:43]

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

[commit-bot: I haz the power, 2014-03-29 23:30:44]

Try jobs failed on following builders:
  tryserver.chromium on linux_chromium_chromeos_rel

[nyquist, 2014-03-30 01:21:02]

The CQ bit was checked by nyquist@chromium.org

[commit-bot: I haz the power, 2014-03-30 01:21:44]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/navabi@google.com/217893002/1

[commit-bot: I haz the power, 2014-03-30 02:57:32]

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

[commit-bot: I haz the power, 2014-03-30 02:57:32]

Try jobs failed on following builders:
  tryserver.chromium on linux_chromium_chromeos_rel

[navabi, 2014-03-30 17:13:38]

The CQ bit was checked by navabi@google.com

[commit-bot: I haz the power, 2014-03-30 17:13:46]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/navabi@google.com/217893002/1

[commit-bot: I haz the power, 2014-03-30 18:35:13]

Change committed as 260458