Change WebRTC SslCipher to be exposed as number only.

webrtc/p2p/base/transport.h

Index: webrtc/p2p/base/transport.h
diff --git a/webrtc/p2p/base/transport.h b/webrtc/p2p/base/transport.h
index a3daa39fbdbe80c25804fd5334be6c283524c93f..df0a34ce016ab2e45f5b2103b33eb80e0c8733c4 100644
--- a/webrtc/p2p/base/transport.h
+++ b/webrtc/p2p/base/transport.h
@@ -108,10 +108,10 @@ typedef std::vector<ConnectionInfo> ConnectionInfos;
 
 // Information about a specific channel
 struct TransportChannelStats {
-  int component;
+  int component = 0;
   ConnectionInfos connection_infos;
   std::string srtp_cipher;
-  std::string ssl_cipher;
+  uint16_t ssl_cipher = 0;
 };
 
 // Information about all the channels of a transport.