gn: declare is_desktop_linux as a build argument

gn: declare is_desktop_linux as a build argument

BUG=448159
Committed: https://crrev.com/e925a3b964d080423a2aef982c193139c4c4cca3
Cr-Commit-Position: refs/heads/master@{#311236}

[Mostyn Bramley-Moore, 2015-01-12 22:44:28]

mostynb@opera.com changed reviewers:
+ brettw@chromium.org

[Mostyn Bramley-Moore, 2015-01-12 22:44:28]

@brettw: PTAL

[brettw, 2015-01-13 02:26:39]

Can you help me understand why you need to set this? Do you override this to
false for some Linux builds? I'm trying to make sure we have actual users for
declare_args calls before adding them.

[Mostyn Bramley-Moore, 2015-01-13 06:54:23]

On 2015/01/13 02:26:39, brettw wrote:
> Can you help me understand why you need to set this? Do you override this to
> false for some Linux builds? I'm trying to make sure we have actual users for
> declare_args calls before adding them.

Yes- I work on an embedded linux product, which is neither desktop linux nor
chromeos.

[brettw, 2015-01-13 06:54:58]

lgtm

[Mostyn Bramley-Moore, 2015-01-13 06:56:51]

The CQ bit was checked by mostynb@opera.com

[commit-bot: I haz the power, 2015-01-13 06:57:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/840863003/20001

[commit-bot: I haz the power, 2015-01-13 08:05:40]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-01-13 08:06:36]

Patchset 2 (id:??) landed as
https://crrev.com/e925a3b964d080423a2aef982c193139c4c4cca3
Cr-Commit-Position: refs/heads/master@{#311236}