Ability to specify KeyType (RSA, ECDSA) for SSLIdentity generation in libjingle

talk/examples/peerconnection/client/conductor.cc

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * 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 notice,
@@ skipping 131 matching lines @@
   }
   else
   {
     constraints.AddOptional(webrtc::MediaConstraintsInterface::kEnableDtlsSrtp,
                             "false");
   }
 
   peer_connection_ =
       peer_connection_factory_->CreatePeerConnection(servers,
                                                      &constraints,
-                                                     NULL,
-                                                     NULL,
-                                                     this);
+                                                     nullptr,
+                                                     this,
+                                                     nullptr);
   return peer_connection_.get() != NULL;
 }
 
 void Conductor::DeletePeerConnection() {
   peer_connection_ = NULL;
   active_streams_.clear();
   main_wnd_->StopLocalRenderer();
   main_wnd_->StopRemoteRenderer();
   peer_connection_factory_ = NULL;
   peer_id_ = -1;
@@ skipping 385 matching lines @@
 }
 
 void Conductor::OnFailure(const std::string& error) {
     LOG(LERROR) << error;
 }
 
 void Conductor::SendMessage(const std::string& json_object) {
   std::string* msg = new std::string(json_object);
   main_wnd_->QueueUIThreadCallback(SEND_MESSAGE_TO_PEER, msg);
 }