Create the API that returns the RTCConfiguration of the PeerConnection.

third_party/WebKit/Source/modules/peerconnection/RTCPeerConnection.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 91 matching lines @@
   ScriptPromise setRemoteDescription(ScriptState*,
                                      const RTCSessionDescriptionInit&);
   ScriptPromise setRemoteDescription(ScriptState*,
                                      const RTCSessionDescriptionInit&,
                                      VoidCallback*,
                                      RTCPeerConnectionErrorCallback*);
   RTCSessionDescription* remoteDescription();
 
   String signalingState() const;
 
+  void getConfiguration(RTCConfiguration&);
   void setConfiguration(ScriptState*, const RTCConfiguration&, ExceptionState&);
 
   // Certificate management
   // http://w3c.github.io/webrtc-pc/#sec.cert-mgmt
   static ScriptPromise generateCertificate(
       ScriptState*,
       const AlgorithmIdentifier& keygenAlgorithm,
       ExceptionState&);
 
   ScriptPromise addIceCandidate(ScriptState*,
@@ skipping 137 matching lines @@
 
   bool m_stopped;
   bool m_closed;
 
   bool m_hasDataChannels;  // For RAPPOR metrics
 };
 
 }  // namespace blink
 
 #endif  // RTCPeerConnection_h