Some ui/BUILD.gn fixes.

Some ui/BUILD.gn fixes.

This fixes some TODOs in ui/BUILD.gn and add GN build file for
third_party/mozilla.

BUG=None
TEST=None
R=brettw@chromium.org

Committed: https://crrev.com/a3affc00ced053e2013464fbcd2431cc6e05e23d
Cr-Commit-Position: refs/heads/master@{#292649}

[brettw, 2014-08-29 05:52:07]

https://codereview.chromium.org/521553002/diff/1/third_party/mozilla/BUILD.gn
File third_party/mozilla/BUILD.gn (right):

https://codereview.chromium.org/521553002/diff/1/third_party/mozilla/BUILD.gn...
third_party/mozilla/BUILD.gn:32: ldflags = [ "-Wl,-ObjC" ]
This is in xcode_settings in the .gyp file, so should go in an if(is_mac ||
is_ios) block here.

[tfarina, 2014-08-29 13:04:53]

https://codereview.chromium.org/521553002/diff/1/third_party/mozilla/BUILD.gn
File third_party/mozilla/BUILD.gn (right):

https://codereview.chromium.org/521553002/diff/1/third_party/mozilla/BUILD.gn...
third_party/mozilla/BUILD.gn:32: ldflags = [ "-Wl,-ObjC" ]
On 2014/08/29 05:52:06, brettw wrote:
> This is in xcode_settings in the .gyp file, so should go in an if(is_mac ||
> is_ios) block here.

Done.

[brettw, 2014-08-29 16:04:51]

The CQ bit was checked by brettw@chromium.org

[brettw, 2014-08-29 16:04:51]

lgtm

[commit-bot: I haz the power, 2014-08-29 16:06:00]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tfarina@chromium.org/521553002/20001

[commit-bot: I haz the power, 2014-08-29 16:30:12]

Committed patchset #2 (id:20001) as b9b72a7ee2e8a07840a650146ec402a7048bede8

[commit-bot: I haz the power, 2014-09-10 03:09:09]

Patchset 2 (id:??) landed as
https://crrev.com/a3affc00ced053e2013464fbcd2431cc6e05e23d
Cr-Commit-Position: refs/heads/master@{#292649}