Fix memory overwrite when sending error code on socket

BUG=357593
NOTRY=true

Review URL: https://codereview.chromium.org/216693005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@260335 0039d316-1c4b-4281-b951-d872f2087c98

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 {