Replacing SSLIdentity* with scoped_refptr<RTCCertificate> in TransportChannel layer

webrtc/p2p/base/transportchannelproxy.cc

Index: webrtc/p2p/base/transportchannelproxy.cc
diff --git a/webrtc/p2p/base/transportchannelproxy.cc b/webrtc/p2p/base/transportchannelproxy.cc
index 79772514c69a3adc3b53172a688732d1c6ef5e5e..f7946dd96f9a2ec4befabf1413e222052a1bdbcd 100644
--- a/webrtc/p2p/base/transportchannelproxy.cc
+++ b/webrtc/p2p/base/transportchannelproxy.cc
@@ -189,22 +189,22 @@ bool TransportChannelProxy::GetSslCipher(std::string* cipher) {
   return impl_->GetSslCipher(cipher);
 }
 
-bool TransportChannelProxy::GetLocalIdentity(
-    rtc::SSLIdentity** identity) const {
+rtc::scoped_refptr<rtc::RTCCertificate>
+TransportChannelProxy::GetLocalCertificate() const {
   ASSERT(rtc::Thread::Current() == worker_thread_);
   if (!impl_) {
-    return false;
+    return nullptr;
   }
-  return impl_->GetLocalIdentity(identity);
+  return impl_->GetLocalCertificate();
 }
 
-bool TransportChannelProxy::GetRemoteCertificate(
+bool TransportChannelProxy::GetRemoteSSLCertificate(
     rtc::SSLCertificate** cert) const {
   ASSERT(rtc::Thread::Current() == worker_thread_);
   if (!impl_) {
     return false;
   }
-  return impl_->GetRemoteCertificate(cert);
+  return impl_->GetRemoteSSLCertificate(cert);
 }
 
 bool TransportChannelProxy::ExportKeyingMaterial(const std::string& label,