Roll ffmpeg for M47.

Roll ffmpeg for M47.

Updates the DEPS to include the ffmpeg roll.

BUG=none
TEST=bots and local asan runs pass.
TBR=rkaplow

Committed: https://crrev.com/ec5cad96ad0c3cf307699733f6fc04f1bea8461a
Cr-Commit-Position: refs/heads/master@{#349836}

[DaleCurtis, 2015-09-16 22:46:59]

Not for review yet, testing only.

[DaleCurtis, 2015-09-16 22:47:03]

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

[commit-bot: I haz the power, 2015-09-16 22:47:37]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1348973003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1348973003/1

[commit-bot: I haz the power, 2015-09-16 22:50:02]

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

[commit-bot: I haz the power, 2015-09-16 22:50:02]

Dry run: Try jobs failed on following builders:
  ios_dbg_simulator_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)
  ios_rel_device_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)
  mac_chromium_compile_dbg_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_comp...)
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[DaleCurtis, 2015-09-16 23:06:13]

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

[commit-bot: I haz the power, 2015-09-16 23:06:43]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1348973003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1348973003/20001

[commit-bot: I haz the power, 2015-09-16 23:25:21]

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

[commit-bot: I haz the power, 2015-09-16 23:25:21]

Dry run: Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[DaleCurtis, 2015-09-17 00:34:06]

Patchset #4 (id:60001) has been deleted

[DaleCurtis, 2015-09-17 00:34:10]

Patchset #3 (id:40001) has been deleted

[DaleCurtis, 2015-09-17 00:34:19]

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

[commit-bot: I haz the power, 2015-09-17 00:35:45]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1348973003/80001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1348973003/80001

[commit-bot: I haz the power, 2015-09-17 00:55:13]

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

[commit-bot: I haz the power, 2015-09-17 00:55:14]

Dry run: Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[DaleCurtis, 2015-09-17 01:17:31]

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

[commit-bot: I haz the power, 2015-09-17 01:17:45]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1348973003/100001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1348973003/100001

[commit-bot: I haz the power, 2015-09-17 03:15:47]

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

[commit-bot: I haz the power, 2015-09-17 03:15:47]

Dry run: This issue passed the CQ dry run.

[DaleCurtis, 2015-09-18 21:00:24]

dalecurtis@chromium.org changed reviewers:
+ chcunningham@chromium.org, rkaplow@chromium.org

[DaleCurtis, 2015-09-18 21:00:24]

chcunningham: media/ changes
rkaplow: UMA additions (trivial)

[chcunningham, 2015-09-18 23:02:01]

lgtm

[DaleCurtis, 2015-09-18 23:04:22]

TBR=rkaplow since they're trivial additions.

[DaleCurtis, 2015-09-18 23:04:27]

The CQ bit was checked by dalecurtis@chromium.org

[DaleCurtis, 2015-09-18 23:04:27]

The patchset sent to the CQ was uploaded after l-g-t-m from
chcunningham@chromium.org
Link to the patchset: https://codereview.chromium.org/1348973003/#ps160001
(title: "Fix comment.")

[commit-bot: I haz the power, 2015-09-18 23:05:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1348973003/160001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1348973003/160001

[commit-bot: I haz the power, 2015-09-19 01:48:10]

Committed patchset #7 (id:160001)

[commit-bot: I haz the power, 2015-09-19 01:48:47]

Patchset 7 (id:??) landed as
https://crrev.com/ec5cad96ad0c3cf307699733f6fc04f1bea8461a
Cr-Commit-Position: refs/heads/master@{#349836}