Revert of Change WebRTC SslCipher to be exposed as number only.

webrtc/p2p/base/p2ptransportchannel.h

Index: webrtc/p2p/base/p2ptransportchannel.h
diff --git a/webrtc/p2p/base/p2ptransportchannel.h b/webrtc/p2p/base/p2ptransportchannel.h
index 8859111bd197fbd9cd2af66dfc22c774348d8d68..b3e7bc1a844d439c521488053805f2340a584d3d 100644
--- a/webrtc/p2p/base/p2ptransportchannel.h
+++ b/webrtc/p2p/base/p2ptransportchannel.h
@@ -111,10 +111,10 @@
   }
 
   // Find out which DTLS-SRTP cipher was negotiated.
-  bool GetSrtpCryptoSuite(std::string* cipher) override { return false; }
+  bool GetSrtpCipher(std::string* cipher) override { return false; }
 
   // Find out which DTLS cipher was negotiated.
-  bool GetSslCipherSuite(uint16_t* cipher) override { return false; }
+  bool GetSslCipher(std::string* cipher) override { return false; }
 
   // Returns null because the channel is not encrypted by default.
   rtc::scoped_refptr<rtc::RTCCertificate> GetLocalCertificate() const override {