Added DtlsCertificate, a ref counted object owning an SSLIdentity

webrtc/p2p/base/dtlstransportchannel.cc

Index: webrtc/p2p/base/dtlstransportchannel.cc
diff --git a/webrtc/p2p/base/dtlstransportchannel.cc b/webrtc/p2p/base/dtlstransportchannel.cc
index f56001ba4d3a51943e414bad8fa97f9f86916f80..c5b0fe6bdb4b576ee40b46fa23a73d6996849f39 100644
--- a/webrtc/p2p/base/dtlstransportchannel.cc
+++ b/webrtc/p2p/base/dtlstransportchannel.cc
@@ -95,7 +95,7 @@ DtlsTransportChannelWrapper::DtlsTransportChannelWrapper(
       channel_(channel),
       downward_(NULL),
       dtls_state_(STATE_NONE),
-      local_identity_(NULL),
+      local_certificate_(nullptr),
       ssl_role_(rtc::SSL_CLIENT),
       ssl_max_version_(rtc::SSL_PROTOCOL_DTLS_10) {
   channel_->SignalReadableState.connect(this,
@@ -133,10 +133,10 @@ void DtlsTransportChannelWrapper::Connect() {
   channel_->Connect();
 }
 
-bool DtlsTransportChannelWrapper::SetLocalIdentity(
-    rtc::SSLIdentity* identity) {
+bool DtlsTransportChannelWrapper::SetLocalCertificate(
+    const rtc::scoped_refptr<webrtc::DtlsCertificate>& certificate) {
   if (dtls_state_ != STATE_NONE) {
-    if (identity == local_identity_) {
+    if (certificate == local_certificate_) {
       // This may happen during renegotiation.
       LOG_J(LS_INFO, this) << "Ignoring identical DTLS identity";
       return true;
@@ -146,8 +146,8 @@ bool DtlsTransportChannelWrapper::SetLocalIdentity(
     }
   }
 
-  if (identity) {
-    local_identity_ = identity;
+  if (certificate.get()) {
+    local_certificate_ = certificate;
     dtls_state_ = STATE_OFFERED;
   } else {
     LOG_J(LS_INFO, this) << "NULL DTLS identity supplied. Not doing DTLS";
@@ -156,12 +156,12 @@ bool DtlsTransportChannelWrapper::SetLocalIdentity(
   return true;
 }
 
-bool DtlsTransportChannelWrapper::GetLocalIdentity(
-    rtc::SSLIdentity** identity) const {
-  if (!local_identity_)
+bool DtlsTransportChannelWrapper::GetLocalCertificate(
+    rtc::scoped_refptr<webrtc::DtlsCertificate>* certificate) const {
+  if (!local_certificate_)
     return false;
 
-  *identity = local_identity_->GetReference();
+  *certificate = local_certificate_;
   return true;
 }
 
@@ -265,7 +265,7 @@ bool DtlsTransportChannelWrapper::SetupDtls() {
 
   downward_ = downward;
 
-  dtls_->SetIdentity(local_identity_->GetReference());
+  dtls_->SetCertificate(local_certificate_);
   dtls_->SetMode(rtc::SSL_MODE_DTLS);
   dtls_->SetMaxProtocolVersion(ssl_max_version_);
   dtls_->SetServerRole(ssl_role_);