Add GN targets for samples

Add GN targets for samples

BUG=chromium:609107
R=machenbach@chromium.org
LOG=n

Committed: https://crrev.com/19a8e09cc0bafa5071c52243234bfc8512210065
Cr-Commit-Position: refs/heads/master@{#36072}

[Michael Achenbach, 2016-05-06 10:29:58]

Principally lgtm. Some questions that we can address in follow ups:

Can BUILD.gn be split in a meaningful way?
How do we order things within BUILD.gn, do we have a policy? E.g. group similar
things together like executables or some pseudo order with leaves of the
dependency forest on the top, roots at the bottom?

[jochen (gone - plz use gerrit), 2016-05-06 10:36:46]

On 2016/05/06 at 10:29:58, machenbach wrote:
> Principally lgtm. Some questions that we can address in follow ups:
> 
> Can BUILD.gn be split in a meaningful way?
> How do we order things within BUILD.gn, do we have a policy? E.g. group
similar things together like executables or some pseudo order with leaves of the
dependency forest on the top, roots at the bottom?

we could have separate BUILD.gn files in e.g. samples/

A precondition for that is to split the toolchain and config definitions into
.gni files

[jochen (gone - plz use gerrit), 2016-05-06 10:37:07]

The CQ bit was checked by jochen@chromium.org

[commit-bot: I haz the power, 2016-05-06 10:37:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1955723003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1955723003/1

[commit-bot: I haz the power, 2016-05-06 10:39:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-06 10:40:31]

Description was changed from

==========
Add GN targets for samples

BUG=chromium:609107
R=machenbach@chromium.org
LOG=n
==========

to

==========
Add GN targets for samples

BUG=chromium:609107
R=machenbach@chromium.org
LOG=n

Committed: https://crrev.com/19a8e09cc0bafa5071c52243234bfc8512210065
Cr-Commit-Position: refs/heads/master@{#36072}
==========

[commit-bot: I haz the power, 2016-05-06 10:40:32]

Patchset 1 (id:??) landed as
https://crrev.com/19a8e09cc0bafa5071c52243234bfc8512210065
Cr-Commit-Position: refs/heads/master@{#36072}

[Michael Hablich, 2016-05-09 06:41:10]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1955353002/ by hablich@chromium.org.

The reason for reverting is: Blocks roll:
https://codereview.chromium.org/1956223002/.