RTCPeerConnection: unbreak build for missing param, and clean up .gyp files a bit.

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Review URL: https://webrtc-codereview.appspot.com/1770005

git-svn-id: http://libjingle.googlecode.com/svn/trunk@365 dd674b97-3498-5ee5-1854-bdd07cd0ff33
3 files changed