Revert "Avoid acquiring VCM::_receiveCritSect during decode callback."

This reverts commit aa3528a9cd65b176b9d6f9d58cecb1068891dca4.

BUG=http://crbug.com/170345
TEST=libjingle_peerconnection_unittest
TBR=stefan,wu

Review URL: https://webrtc-codereview.appspot.com/1999004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4510 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed