Add files and exclusions needed for NaCl IPC proxy to base_untrusted target.

Add files and exclusions needed for NaCl IPC proxy to base_untrusted target.
BUG=116317
TEST=compiles

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=141613

[bbudge, 2012-06-11 18:04:04]

I think the conversion of the existing .gyp files is difficult enough that I'll
split them into separate CLs, one for each src/ subfolder.

[brettw, 2012-06-11 19:08:50]

Is it possible to do this via exclusion so the list of files can be in base.gypi
with everything else?

[bbudge, 2012-06-11 22:33:05]

Changed conditions so POSIX and NaCl files are included in nacl_untrusted_build
targets. Unwanted files are manually excluded.

[brettw, 2012-06-11 22:36:53]

lgtm

[bbudge, 2012-06-11 23:48:57]

The previous change excluded 'nacl/' directories. Unfortunately, there are some
'nacl/' directories already present since nacl hasn't been considered a target
platform until now.

[commit-bot: I haz the power, 2012-06-12 01:43:34]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/bbudge@chromium.org/10544095/11002

[commit-bot: I haz the power, 2012-06-12 04:02:58]

Change committed as 141613