Ignore host certificate in remoting::V2Authenticator on the client side.

remoting/protocol/v2_authenticator.cc

Index: remoting/protocol/v2_authenticator.cc
diff --git a/remoting/protocol/v2_authenticator.cc b/remoting/protocol/v2_authenticator.cc
index a17fb466c116f9adc1ae7517b503652ba681d47d..bbb8919b0d6b4fe72ce0fc0d5c355aad1aa59953 100644
--- a/remoting/protocol/v2_authenticator.cc
+++ b/remoting/protocol/v2_authenticator.cc
@@ -92,23 +92,6 @@ void V2Authenticator::ProcessMessage(const buzz::XmlElement* message,
 void V2Authenticator::ProcessMessageInternal(const buzz::XmlElement* message) {
   DCHECK_EQ(state(), WAITING_MESSAGE);
 
-  // Parse the certificate.
-  std::string base64_cert = message->TextNamed(kCertificateTag);
-  if (!base64_cert.empty()) {
-    if (!base::Base64Decode(base64_cert, &remote_cert_)) {
-      LOG(WARNING) << "Failed to decode certificate received from the peer.";
-      remote_cert_.clear();
-    }
-  }
-
-  // Client always expect certificate in the first message.
-  if (!is_host_side() && remote_cert_.empty()) {
-    LOG(WARNING) << "No valid host certificate.";
-    state_ = REJECTED;
-    rejection_reason_ = PROTOCOL_ERROR;
-    return;
-  }
-
   const buzz::XmlElement* eke_element = message->FirstNamed(kEkeTag);
   if (!eke_element) {
     LOG(WARNING) << "No eke-message found.";
@@ -196,8 +179,7 @@ V2Authenticator::CreateChannelAuthenticator() const {
     return SslHmacChannelAuthenticator::CreateForHost(
         local_cert_, local_key_pair_, auth_key_);
   } else {
-    return SslHmacChannelAuthenticator::CreateForClient(
-        remote_cert_, auth_key_);
+    return SslHmacChannelAuthenticator::CreateForClient(auth_key_);
   }
 }