Revert of Roll WebRTC 8649:8651, Libjingle 8639:8651

Revert of Roll WebRTC 8649:8651, Libjingle 8639:8651 (patchset #1 id:1 of https://codereview.chromium.org/987033002/)

Reason for revert:
Broke compilation on Linux http://build.chromium.org/p/chromium/builders/Linux/builds/59264 with error message: AttributeError: 'Checker' object has no attribute 'run_js_check'

Original issue's description:
> Roll WebRTC 8649:8651, Libjingle 8639:8651
>
> WebRTC 8649:8651
> Changes: https://chromium.googlesource.com/external/webrtc/trunk/webrtc.git/+log/b4c07a0..61b3feb
>
> Libjingle 8639:8651
> Changes: https://chromium.googlesource.com/external/webrtc/trunk/talk.git/+log/c9f4c13..4138f65
>
> TBR=tommi
>
> Committed: https://crrev.com/f497d1fbcf1c0919ba260ed64ac18829b3acf7a0
> Cr-Commit-Position: refs/heads/master@{#319635}

TBR=tommi@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/62c6611787693f20f4201411d816d647f77f17d0
Cr-Commit-Position: refs/heads/master@{#319638}

[magjed_chromium, 2015-03-09 15:46:35]

Created Revert of Roll WebRTC 8649:8651, Libjingle 8639:8651

[commit-bot: I haz the power, 2015-03-09 15:46:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/989253002/1

[commit-bot: I haz the power, 2015-03-09 15:47:34]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-09 15:48:17]

Patchset 1 (id:??) landed as
https://crrev.com/62c6611787693f20f4201411d816d647f77f17d0
Cr-Commit-Position: refs/heads/master@{#319638}

[magjed_chromium, 2015-03-09 15:55:18]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/994603002/ by magjed@chromium.org.

The reason for reverting is: The compile error was not caused by the WebRTC
roll..