Fix memory overwrite when sending error code on socket

remoting/host/gnubby_socket.cc

Index: remoting/host/gnubby_socket.cc
diff --git a/remoting/host/gnubby_socket.cc b/remoting/host/gnubby_socket.cc
index 09d5d301825f9a9b24699de230fd349e2f4be525..40cb7d42a63b72d1eb0a3bd551f29b25690bc87e 100644
--- a/remoting/host/gnubby_socket.cc
+++ b/remoting/host/gnubby_socket.cc
@@ -4,6 +4,7 @@
 
 #include "remoting/host/gnubby_socket.h"
 
+#include "base/macros.h"
 #include "base/timer/timer.h"
 #include "net/socket/stream_listen_socket.h"
 
@@ -75,7 +76,7 @@ void GnubbySocket::SendResponse(const std::string& response_data) {
 void GnubbySocket::SendSshError() {
   DCHECK(CalledOnValidThread());
 
-  SendResponse(kSshError);
+  SendResponse(std::string(kSshError, arraysize(kSshError)));
 }
 
 bool GnubbySocket::IsSocket(net::StreamListenSocket* socket) const {