Relanding Switched main WebRTC browser tests to use a more realistic video

Relanding Switched main WebRTC browser tests to use a more realistic video

> Switched main WebRTC browser tests to use a more realistic video.

> After switching to fake device flags instead of software webcams, we
> noticed a ton of video-related metrics changed. This is because the
> spinning green ball is an unrealistic encode/decode example. This patch
> will use the new fake device file flag to play a more realistic video.

> BUG=352261, 343504
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=259887

TBR=tommi@chromium.org
BUG=352261, 343504
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=260213

[phoglund_chromium, 2014-03-28 10:04:10]

We can't run this particular test on our xp bots anymore since the xp bots
cannot download the reference files. I'll see if I can get them back up in a
later patch with the regular fake device (which is better than nothing). We
still have content browsertests on xp so webrtc is still well covered.

[phoglund_chromium, 2014-03-28 10:04:15]

The CQ bit was checked by phoglund@chromium.org

[commit-bot: I haz the power, 2014-03-28 10:05:10]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/phoglund@chromium.org/216773002/1

[commit-bot: I haz the power, 2014-03-28 15:05:28]

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

[commit-bot: I haz the power, 2014-03-28 15:05:29]

Retried try job too often on ios_dbg_simulator for step(s) components_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=ios_dbg_si...

[phoglund_chromium, 2014-03-28 15:57:17]

The CQ bit was checked by phoglund@chromium.org

[commit-bot: I haz the power, 2014-03-28 16:02:06]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/phoglund@chromium.org/216773002/1

[commit-bot: I haz the power, 2014-03-28 18:40:00]

Change committed as 260213