Clobber output directory on linux and mac after landmine.

Clobber output directory on linux and mac after landmine.

Xcode uses a different naming scheme for directories within
the xcodebuild directory. But it is safe to just delete
everything withing xcodebuild or out. Keep the soft clobber
for windows' build directory only, where subdirectories
follow the *release* and *debug* naming scheme.

BUG=chromium:403263
LOG=n
TBR=jochen@chromium.org

Committed: https://crrev.com/b00ff50d52c4ec09af67eb873865b37f751884da
Cr-Commit-Position: refs/heads/master@{#26852}

[Michael Achenbach, 2015-02-25 10:51:11]

machenbach@chromium.org changed reviewers:
+ jkummerow@chromium.org, jochen@chromium.org, tandrii@chromium.org

[Michael Achenbach, 2015-02-25 10:51:20]

PTAL

[tandrii(chromium), 2015-02-25 11:49:04]

lgtm

[Michael Achenbach, 2015-02-25 14:14:50]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2015-02-25 14:15:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/955953002/1

[commit-bot: I haz the power, 2015-02-25 14:16:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-25 14:16:50]

Patchset 1 (id:??) landed as
https://crrev.com/b00ff50d52c4ec09af67eb873865b37f751884da
Cr-Commit-Position: refs/heads/master@{#26852}