Fix the build metadata definition in the GN build.

Fix the build metadata definition in the GN build.

The default value of the dont_embed_build_metadata in GN is swapped from the GYP build.

Committed: https://crrev.com/be21e6fe0627b27d32a99c073e23b733d410b8a1
Cr-Commit-Position: refs/heads/master@{#328826}

[brettw, 2015-05-07 18:31:12]

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

[brettw, 2015-05-07 18:31:18]

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

[commit-bot: I haz the power, 2015-05-07 18:33:55]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1137443003/1

[Dirk Pranke, 2015-05-07 18:45:46]

lgtm

[brettw, 2015-05-07 19:06:52]

The CQ bit was unchecked by brettw@chromium.org

[brettw, 2015-05-07 19:06:53]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2015-05-07 19:07:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1137443003/1

[commit-bot: I haz the power, 2015-05-07 21:01:41]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-07 21:02:59]

Patchset 1 (id:??) landed as
https://crrev.com/be21e6fe0627b27d32a99c073e23b733d410b8a1
Cr-Commit-Position: refs/heads/master@{#328826}