Roll ffmpeg deps to disable broken AAC SBR SSE2 functions.

Roll ffmpeg deps to disable broken AAC SBR SSE2 functions.

BUG=536773, 536601
TEST=new regression test.
TBR=chcunningham

Committed: https://crrev.com/db657597f594ca30c12f1fc3ea90b75e9473e009
Cr-Commit-Position: refs/heads/master@{#351101}

[DaleCurtis, 2015-09-28 17:09:46]

The CQ bit was checked by dalecurtis@chromium.org

[commit-bot: I haz the power, 2015-09-28 17:09:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1377433002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1377433002/1

[chcunningham, 2015-09-28 17:44:09]

lgtm


Can you give me access to
http://code.google.com/p/chromium/issues/detail?id=536773

Also, Will audio quality be noticeably worse for turning off SBR?

[chcunningham, 2015-09-28 17:44:51]

Err... I already have access on that bug, I meant to ask for this one:
https://code.google.com/p/chromium/issues/detail?id=536601

[commit-bot: I haz the power, 2015-09-28 19:20:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-28 19:22:34]

Patchset 1 (id:??) landed as
https://crrev.com/db657597f594ca30c12f1fc3ea90b75e9473e009
Cr-Commit-Position: refs/heads/master@{#351101}

[DaleCurtis, 2015-09-28 20:18:53]

No, this just disables the SSE2 variants, the C versions are still there.