Add a continual_gathering_policy in PeerConnection RTCConfiguration

webrtc/p2p/base/transportchannelimpl.h

Index: webrtc/p2p/base/transportchannelimpl.h
diff --git a/webrtc/p2p/base/transportchannelimpl.h b/webrtc/p2p/base/transportchannelimpl.h
index ddddf15a030a21a391efbc68f5d0feb33d11e3ee..ab3a31e1e9812320d88e7ae29f7d57d1670c6655 100644
--- a/webrtc/p2p/base/transportchannelimpl.h
+++ b/webrtc/p2p/base/transportchannelimpl.h
@@ -59,7 +59,7 @@ class TransportChannelImpl : public TransportChannel {
   // SetRemoteIceMode must be implemented only by the ICE transport channels.
   virtual void SetRemoteIceMode(IceMode mode) = 0;
 
-  virtual void SetReceivingTimeout(int timeout_ms) = 0;
+  virtual void SetIceConfig(const IceConfig& config) = 0;
 
   // Begins the process of attempting to make a connection to the other client.
   virtual void Connect() = 0;