top-level-ize gn's pkg_config in audio/BUILD.gn

top-level-ize gn's pkg_config in audio/BUILD.gn

pkg_config can't be nested inside a source set. pull out in
media/audio/BUILD.gn

BUG=559487
Committed: https://crrev.com/cba97c506e4da5a8cba88ed8387c6165b4131df8
Cr-Commit-Position: refs/heads/master@{#361204}

[rjkroege, 2015-11-21 02:29:41]

rjkroege@chromium.org changed reviewers:
+ dpranke@chromium.org, tommi@chromium.org

[rjkroege, 2015-11-21 02:29:41]

ptal

[Dirk Pranke, 2015-11-21 02:43:14]

lgtm

https://codereview.chromium.org/1467843002/diff/1/media/audio/BUILD.gn
File media/audio/BUILD.gn (right):

https://codereview.chromium.org/1467843002/diff/1/media/audio/BUILD.gn#newcod...
media/audio/BUILD.gn:253: if (link_pulseaudio) {
nit: this could be just use_pulseaudio && link_pulseaudio

[tommi (sloooow) - chröme, 2015-11-21 14:09:40]

lgtm

[rjkroege, 2015-11-23 21:40:37]

The CQ bit was checked by rjkroege@chromium.org

[rjkroege, 2015-11-23 21:40:37]

The patchset sent to the CQ was uploaded after l-g-t-m from
dpranke@chromium.org, tommi@chromium.org
Link to the patchset: https://codereview.chromium.org/1467843002/#ps20001
(title: "review nit")

[commit-bot: I haz the power, 2015-11-23 21:42:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1467843002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1467843002/20001

[commit-bot: I haz the power, 2015-11-23 22:27:05]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-23 22:28:12]

Patchset 2 (id:??) landed as
https://crrev.com/cba97c506e4da5a8cba88ed8387c6165b4131df8
Cr-Commit-Position: refs/heads/master@{#361204}