Replacing SSLIdentity* with scoped_refptr<RTCCertificate> in TransportChannel layer

webrtc/p2p/base/dtlstransport.h

Index: webrtc/p2p/base/dtlstransport.h
diff --git a/webrtc/p2p/base/dtlstransport.h b/webrtc/p2p/base/dtlstransport.h
index 9fd3ba3274ad585e3196bfc36989f763510f650e..8850cfc29a3ab767ab7fc7a2b0b0a00d87c5951b 100644
--- a/webrtc/p2p/base/dtlstransport.h
+++ b/webrtc/p2p/base/dtlstransport.h
@@ -92,9 +92,7 @@ class DtlsTransport : public Base {
       certificate_ = nullptr;
     }
 
-    // TODO(hbos): SetLocalCertificate
-    if (!channel->SetLocalIdentity(
-        certificate_ ? certificate_->identity() : nullptr)) {
+    if (!channel->SetLocalCertificate(certificate_)) {
       return BadTransportDescription("Failed to set local identity.",
                                      error_desc);
     }