[GN] Guard the "pangocairo" config with (use_pango || use_cairo).

[GN] Guard the "pangocairo" config with (use_pango || use_cairo).

To avoid breakge on platforms that don't support cairo or pango, the
declaration of the "pangocairo" pkg-config target should be guarded by
these feature flags. Also update offending callsites.

BUG= b/26908482

Committed: https://crrev.com/a08ad8436ec87b7018facc26e535c3788d5de73f
Cr-Commit-Position: refs/heads/master@{#372956}

[slan, 2016-02-02 00:46:54]

slan@chromium.org changed reviewers:
+ dpranke@google.com, sky@chromium.org

[slan, 2016-02-02 00:46:54]

+sky@ for chrome/OWNERS
+dpranke@ for build/config OWNERS

Dirk and Scott, 

We're seeing some of our bots fail, as they are missing the necessary .pc files
for pangocairo. PTAL!

[Dirk Pranke, 2016-02-02 00:54:47]

dpranke@chromium.org changed reviewers:
+ dpranke@chromium.org

[Dirk Pranke, 2016-02-02 00:54:48]

lgtm

[slan, 2016-02-02 00:58:07]

The CQ bit was checked by slan@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-02-02 00:59:35]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1657143002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1657143002/20001

[commit-bot: I haz the power, 2016-02-02 02:02:27]

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

[commit-bot: I haz the power, 2016-02-02 02:02:28]

Dry run: This issue passed the CQ dry run.

[sky, 2016-02-02 04:20:42]

LGTM

[slan, 2016-02-02 15:59:11]

The CQ bit was checked by slan@chromium.org

[commit-bot: I haz the power, 2016-02-02 16:00:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1657143002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1657143002/20001

[commit-bot: I haz the power, 2016-02-02 16:15:05]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-02-02 16:17:01]

Description was changed from

==========
[GN] Guard the "pangocairo" config with (use_pango || use_cairo).

To avoid breakge on platforms that don't support cairo or pango, the
declaration of the "pangocairo" pkg-config target should be guarded by
these feature flags. Also update offending callsites.

BUG= b/26908482
==========

to

==========
[GN] Guard the "pangocairo" config with (use_pango || use_cairo).

To avoid breakge on platforms that don't support cairo or pango, the
declaration of the "pangocairo" pkg-config target should be guarded by
these feature flags. Also update offending callsites.

BUG= b/26908482

Committed: https://crrev.com/a08ad8436ec87b7018facc26e535c3788d5de73f
Cr-Commit-Position: refs/heads/master@{#372956}
==========

[commit-bot: I haz the power, 2016-02-02 16:17:01]

Patchset 2 (id:??) landed as
https://crrev.com/a08ad8436ec87b7018facc26e535c3788d5de73f
Cr-Commit-Position: refs/heads/master@{#372956}