Allow pruning other files when uploading bootstrap tarball

Allow pruning other files when uploading bootstrap tarball

BUG=366748
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=278190

[Ryan Tseng, 2014-06-14 00:24:53]

We probably want to start pruning at some point, might as well put in the
support for it now.

[szager1, 2014-06-16 17:35:55]

lgtm

[Ryan Tseng, 2014-06-16 20:33:23]

The CQ bit was checked by hinoka@google.com

[commit-bot: I haz the power, 2014-06-16 20:35:01]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/hinoka@chromium.org/337763005/20001

[commit-bot: I haz the power, 2014-06-16 20:36:58]

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

[commit-bot: I haz the power, 2014-06-16 20:36:59]

Presubmit check for 337763005-20001 failed and returned exit status 1.

Running presubmit commit checks ...
Checking out rietveld...
Running save-description-on-failure.sh
Running push-basic.sh
Running upstream.sh
Running submit-from-new-dir.sh
Running abandon.sh
Running submodule-merge-test.sh
Running upload-local-tracking-branch.sh
Running hooks.sh
Running post-dcommit-hook-test.sh
Running upload-stale.sh
Running patch.sh
Running basic.sh

** Presubmit ERRORS **
Pylint (97 files) (30.71s) failed
************* Module
/b/infra_internal/commit_queue/workdir/tools/depot_tools/git_cache.py
E1102:404,8:Mirror.update_bootstrap: gsutil is not callable


Presubmit checks took 115.0s to calculate.

[Ryan Tseng, 2014-06-18 23:15:42]

The CQ bit was checked by hinoka@google.com

[commit-bot: I haz the power, 2014-06-18 23:16:37]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/hinoka@chromium.org/337763005/40001

[commit-bot: I haz the power, 2014-06-18 23:18:21]

Change committed as 278190