Change WebRTC SslCipher to be exposed as number only.

talk/app/webrtc/statscollector.cc

Index: talk/app/webrtc/statscollector.cc
diff --git a/talk/app/webrtc/statscollector.cc b/talk/app/webrtc/statscollector.cc
index 021234709dc2983af631f81db01df8db4ac18de5..feda80c3185ca30709c095e0802d1b89d76a4663 100644
--- a/talk/app/webrtc/statscollector.cc
+++ b/talk/app/webrtc/statscollector.cc
@@ -734,7 +734,7 @@ void StatsCollector::ExtractSessionInfo() {
         channel_report->AddString(StatsReport::kStatsValueNameSrtpCipher,
                                   srtp_cipher);
       }
-      const std::string& ssl_cipher = channel_iter.ssl_cipher;
+      const std::string& ssl_cipher = channel_iter.ssl_cipher.name;
       if (!ssl_cipher.empty()) {
         channel_report->AddString(StatsReport::kStatsValueNameDtlsCipher,
                                   ssl_cipher);