Chromecast: adds fake libffmpegsumo target for more graceful internal build.

Chromecast: adds fake libffmpegsumo target for more graceful internal build.

R=alokp@chromium.org
BUG=b/21639416

Committed: https://crrev.com/0af11e456d0992f4ef8c67b4d67056ffe151e51e
Cr-Commit-Position: refs/heads/master@{#332943}

[gunsch, 2015-06-04 21:41:00]

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

[commit-bot: I haz the power, 2015-06-04 21:41:34]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1165943004/1

[gunsch, 2015-06-04 21:41:41]

gunsch@chromium.org changed reviewers:
+ dougsteed@chromium.org

[gunsch, 2015-06-04 21:41:41]

@Doug to review, @Alok for committer stamp.

Everyone else who's been aware of/looking at this is CC'd.

[commit-bot: I haz the power, 2015-06-04 21:52:52]

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

[commit-bot: I haz the power, 2015-06-04 21:52:54]

Dry run: Try jobs failed on following builders:
  android_chromium_gn_compile_rel on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/android_chromiu...)

[dougsteed, 2015-06-04 21:53:32]

On 2015/06/04 21:52:54, commit-bot: I haz the power wrote:
> Dry run: Try jobs failed on following builders:
>   android_chromium_gn_compile_rel on tryserver.chromium.linux (JOB_FAILED,
>
http://build.chromium.org/p/tryserver.chromium.linux/builders/android_chromiu...)

LGTM

[alokp, 2015-06-04 22:28:35]

lgtm

[gunsch, 2015-06-04 22:30:47]

The CQ bit was checked by gunsch@chromium.org

[commit-bot: I haz the power, 2015-06-04 22:32:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1165943004/1

[commit-bot: I haz the power, 2015-06-04 22:39:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-04 22:41:31]

Patchset 1 (id:??) landed as
https://crrev.com/0af11e456d0992f4ef8c67b4d67056ffe151e51e
Cr-Commit-Position: refs/heads/master@{#332943}