Revert 276680 "Roll webrtc & libjingle 6352:6406."

Revert 276680 "Roll webrtc & libjingle 6352:6406."

Broke Android bots runhooks:
http://build.chromium.org/p/chromium/builders/Android/builds/24889

> Roll webrtc & libjingle 6352:6406.
> 
> This CL is a takeover of https://codereview.chromium.org/329773004/
> 
> NOTRY=true
> 
> TBR=ronghuawu@chromium.org
> 
> Review URL: https://codereview.chromium.org/328303002

TBR=xians@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=276693

[phoglund_chromium, 2014-06-12 15:34:59]

Committed patchset #1 manually as r276693 (tree was closed).