The critical section in StorePacket was unnamed and only existed in expression scope. Added GUARDED_BY annotations (which caught the bug), then fixed it by naming the variable. BUG=2880 R=henrika@webrtc.org Review URL: https://webrtc-codereview.appspot.com/7979004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@5484 4adac7df-926f-26a2-2b94-8c16560cd09d