GN: Fix host_forwarder when is_component=true

GN: Fix host_forwarder when is_component=true

Creates a symlink rather than a copy so that it can find its dependent
libraries.

BUG=535322
Committed: https://crrev.com/d2287656e5f45343bdc4d083916183d30d873460
Cr-Commit-Position: refs/heads/master@{#354018}

[agrieve, 2015-10-14 01:53:59]

agrieve@chromium.org changed reviewers:
+ yfriedman@chromium.org

[agrieve, 2015-10-14 01:54:00]

₪

[agrieve, 2015-10-14 02:48:32]

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

[commit-bot: I haz the power, 2015-10-14 02:49:06]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1402063002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1402063002/1

[commit-bot: I haz the power, 2015-10-14 03:21:29]

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

[commit-bot: I haz the power, 2015-10-14 03:21:31]

Dry run: This issue passed the CQ dry run.

[Yaron, 2015-10-14 14:07:04]

lgtm

[agrieve, 2015-10-14 14:10:50]

The CQ bit was checked by agrieve@chromium.org

[commit-bot: I haz the power, 2015-10-14 14:11:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1402063002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1402063002/1

[commit-bot: I haz the power, 2015-10-14 14:54:32]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-14 14:56:26]

Patchset 1 (id:??) landed as
https://crrev.com/d2287656e5f45343bdc4d083916183d30d873460
Cr-Commit-Position: refs/heads/master@{#354018}