Replacing SSLIdentity* with scoped_refptr<RTCCertificate> in TransportChannel layer

webrtc/p2p/base/p2ptransportchannel.h

Index: webrtc/p2p/base/p2ptransportchannel.h
diff --git a/webrtc/p2p/base/p2ptransportchannel.h b/webrtc/p2p/base/p2ptransportchannel.h
index 335ee7d166205040c24b3cb0a74dc12bec59ca97..022ba8556bb07fea8e8ec8c8eb3e46fcb7b6bb26 100644
--- a/webrtc/p2p/base/p2ptransportchannel.h
+++ b/webrtc/p2p/base/p2ptransportchannel.h
@@ -120,11 +120,12 @@ class P2PTransportChannel : public TransportChannelImpl,
   }
 
   // Returns false because the channel is not encrypted by default.
-  virtual bool GetLocalIdentity(rtc::SSLIdentity** identity) const {
+  bool GetLocalCertificate(
+      rtc::scoped_refptr<rtc::RTCCertificate>* certificate) const override {
     return false;
   }
 
-  virtual bool GetRemoteCertificate(rtc::SSLCertificate** cert) const {
+  bool GetRemoteSSLCertificate(rtc::SSLCertificate** cert) const override {
     return false;
   }
 
@@ -139,7 +140,8 @@ class P2PTransportChannel : public TransportChannelImpl,
     return false;
   }
 
-  virtual bool SetLocalIdentity(rtc::SSLIdentity* identity) {
+  bool SetLocalCertificate(
+      const rtc::scoped_refptr<rtc::RTCCertificate>& certificate) override {
     return false;
   }