Revert of purge nss files and dependencies

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.
  */
 
 #if HAVE_CONFIG_H
 #include "config.h"
 #endif  // HAVE_CONFIG_H
 
 #include "webrtc/base/sslstreamadapter.h"
 #include "webrtc/base/sslconfig.h"
 
 #if SSL_USE_SCHANNEL
 
 // SChannel support for DTLS and peer-to-peer mode are not
 // done.
 #elif SSL_USE_OPENSSL  // && !SSL_USE_SCHANNEL
 
 #include "webrtc/base/opensslstreamadapter.h"
 
-#endif  // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL
+#elif SSL_USE_NSS      // && !SSL_USE_SCHANNEL && !SSL_USE_OPENSSL
+
+#include "webrtc/base/nssstreamadapter.h"
+
+#endif  // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL && !SSL_USE_NSS
 
 ///////////////////////////////////////////////////////////////////////////////
 
 namespace rtc {
 
 SSLStreamAdapter* SSLStreamAdapter::Create(StreamInterface* stream) {
 #if SSL_USE_SCHANNEL
   return NULL;
 #elif SSL_USE_OPENSSL  // !SSL_USE_SCHANNEL
   return new OpenSSLStreamAdapter(stream);
-#else  // !SSL_USE_SCHANNEL && !SSL_USE_OPENSSL
+#elif SSL_USE_NSS     //  !SSL_USE_SCHANNEL && !SSL_USE_OPENSSL
+  return new NSSStreamAdapter(stream);
+#else  // !SSL_USE_SCHANNEL && !SSL_USE_OPENSSL && !SSL_USE_NSS
   return NULL;
 #endif
 }
 
 bool SSLStreamAdapter::GetSslCipher(std::string* cipher) {
   return false;
 }
 
 bool SSLStreamAdapter::ExportKeyingMaterial(const std::string& label,
                                             const uint8* context,
@@ skipping 29 matching lines @@
 bool SSLStreamAdapter::HaveDtlsSrtp() {
   return OpenSSLStreamAdapter::HaveDtlsSrtp();
 }
 bool SSLStreamAdapter::HaveExporter() {
   return OpenSSLStreamAdapter::HaveExporter();
 }
 std::string SSLStreamAdapter::GetDefaultSslCipher(SSLProtocolVersion version,
                                                   KeyType key_type) {
   return OpenSSLStreamAdapter::GetDefaultSslCipher(version, key_type);
 }
-#endif  // !SSL_USE_SCHANNEL && !SSL_USE_OPENSSL
+#elif SSL_USE_NSS
+bool SSLStreamAdapter::HaveDtls() {
+  return NSSStreamAdapter::HaveDtls();
+}
+bool SSLStreamAdapter::HaveDtlsSrtp() {
+  return NSSStreamAdapter::HaveDtlsSrtp();
+}
+bool SSLStreamAdapter::HaveExporter() {
+  return NSSStreamAdapter::HaveExporter();
+}
+std::string SSLStreamAdapter::GetDefaultSslCipher(SSLProtocolVersion version,
+                                                  KeyType key_type) {
+  return NSSStreamAdapter::GetDefaultSslCipher(version, key_type);
+}
+#endif  // !SSL_USE_SCHANNEL && !SSL_USE_OPENSSL && !SSL_USE_NSS
 
 ///////////////////////////////////////////////////////////////////////////////
 
 }  // namespace rtc