Roll libvpx 248011:251580

Roll libvpx 248011:251850

Includes VP9 external frame buffers.

Roll details:
https://codereview.chromium.org/168343002

Keep casting away warning:
https://codereview.chromium.org/167973004

Update README.chromium::
https://codereview.chromium.org/171343002

BUG=339889
R=tomfinegan@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=251858

[Johann, 2014-02-15 05:45:40]

would <3 a look when you get a chance

[Johann, 2014-02-15 06:03:57]

Roll libvpx 248011:251547

Includes VP9 external frame buffers.

Fixes https://code.google.com/p/chromium/issues/detail?id=339889

Roll details:
https://codereview.chromium.org/168343002

Keep casting away warning:
https://codereview.chromium.org/167973004

TBR=tomfinegan@chromium.org

[Tom Finegan, 2014-02-18 18:49:38]

lgtm

[Tom Finegan, 2014-02-18 18:57:11]

The CQ bit was checked by tomfinegan@chromium.org

[commit-bot: I haz the power, 2014-02-18 18:57:45]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/johannkoenig@google.com/168363002/40001

[commit-bot: I haz the power, 2014-02-18 21:02:39]

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

[commit-bot: I haz the power, 2014-02-18 21:02:40]

Commit queue rejected this change because the description was changed
between the time the change entered the commit queue and the time it
was ready to commit. You can safely check the commit box again.

[Johann, 2014-02-18 22:24:04]

Committed patchset #3 manually as r251858 (presubmit successful).