Convert internal representation of Srtp cryptos from string to int.

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 347a84640cf9973a72d86e5133d5b4bc038dbb72..ee44b6edc71da67f563fd698f3058c1cd3445931 100644
--- a/talk/app/webrtc/statscollector.cc
+++ b/talk/app/webrtc/statscollector.cc
@@ -730,17 +730,17 @@ void StatsCollector::ExtractSessionInfo() {
         channel_report->AddId(StatsReport::kStatsValueNameRemoteCertificateId,
                               remote_cert_report_id);
       }
-      const std::string& srtp_cipher = channel_iter.srtp_cipher;
-      if (!srtp_cipher.empty()) {
+      int srtp_cipher = channel_iter.srtp_cipher;

[pthatcher1, 2015/11/11 19:59:40]

Should we rename srtp_chiper to srtp_crypto_suite?  

I mean the local variable, not the member variable.

[guoweis_webrtc, 2015/11/17 01:21:15]

Done.

+      if (srtp_cipher && rtc::SrtpCryptoSuiteToName(srtp_cipher).length()) {
         channel_report->AddString(StatsReport::kStatsValueNameSrtpCipher,
-                                  srtp_cipher);
+                                  rtc::SrtpCryptoSuiteToName(srtp_cipher));
       }
       int ssl_cipher = channel_iter.ssl_cipher;

[pthatcher1, 2015/11/11 19:59:40]

And should we rename ssl_cipher to ssl_cipher_suite?

[guoweis_webrtc, 2015/11/17 01:21:15]

Done.

       if (ssl_cipher &&
-          rtc::SSLStreamAdapter::GetSslCipherSuiteName(ssl_cipher).length()) {
+          rtc::SSLStreamAdapter::SslCipherSuiteToName(ssl_cipher).length()) {
         channel_report->AddString(
             StatsReport::kStatsValueNameDtlsCipher,
-            rtc::SSLStreamAdapter::GetSslCipherSuiteName(ssl_cipher));
+            rtc::SSLStreamAdapter::SslCipherSuiteToName(ssl_cipher));
       }
 
       int connection_id = 0;