Log how often DTLS negotiation failed because of incompatible ciphersuites.

webrtc/base/sslstreamadapter.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 32 matching lines @@
 }
 
 SSLStreamAdapter* SSLStreamAdapter::Create(StreamInterface* stream) {
 #if SSL_USE_OPENSSL
   return new OpenSSLStreamAdapter(stream);
 #else  // !SSL_USE_OPENSSL
   return NULL;
 #endif  // SSL_USE_OPENSSL
 }
 
+SSLStreamAdapter::SSLStreamAdapter(StreamInterface* stream)
+    : StreamAdapterInterface(stream),
+      ignore_bad_cert_(false),
+      client_auth_enabled_(true) {}
+
+SSLStreamAdapter::~SSLStreamAdapter() {}
+
 bool SSLStreamAdapter::GetSslCipherSuite(int* cipher_suite) {
   return false;
 }
 
 bool SSLStreamAdapter::ExportKeyingMaterial(const std::string& label,
                                             const uint8_t* context,
                                             size_t context_len,
                                             bool use_context,
                                             uint8_t* result,
                                             size_t result_len) {
@@ skipping 30 matching lines @@
   return OpenSSLStreamAdapter::IsAcceptableCipher(cipher, key_type);
 }
 std::string SSLStreamAdapter::SslCipherSuiteToName(int cipher_suite) {
   return OpenSSLStreamAdapter::SslCipherSuiteToName(cipher_suite);
 }
 #endif  // SSL_USE_OPENSSL
 
 ///////////////////////////////////////////////////////////////////////////////
 
 }  // namespace rtc