Remove |certificate_error_code| and SpdySession::TryAccessStream().

net/http/http_proxy_client_socket_wrapper.cc

Index: net/http/http_proxy_client_socket_wrapper.cc
diff --git a/net/http/http_proxy_client_socket_wrapper.cc b/net/http/http_proxy_client_socket_wrapper.cc
index 0d299c8114362dd858bf08b4d778c2f6b586083a..c171d58f2e1be5f083e4b7cecd6966051ab499f5 100644
--- a/net/http/http_proxy_client_socket_wrapper.cc
+++ b/net/http/http_proxy_client_socket_wrapper.cc
@@ -532,7 +532,7 @@ int HttpProxyClientSocketWrapper::DoSpdyProxyCreateStream() {
   } else {
     // Create a session direct to the proxy itself
     spdy_session = spdy_session_pool_->CreateAvailableSessionFromSocket(
-        key, std::move(transport_socket_handle_), net_log_, OK,
+        key, std::move(transport_socket_handle_), net_log_,
         /*using_ssl_*/ true);
     DCHECK(spdy_session);
   }