Adding the message definitions for the remote_security_key STDIO communication classes.

remoting/host/security_key/remote_security_key_messages.cc

Index: remoting/host/security_key/remote_security_key_messages.cc
diff --git a/remoting/host/security_key/remote_security_key_messages.cc b/remoting/host/security_key/remote_security_key_messages.cc
new file mode 100644
index 0000000000000000000000000000000000000000..269488bba71c53c12ad37352f048449ceb310af5
--- /dev/null
+++ b/remoting/host/security_key/remote_security_key_messages.cc
@@ -0,0 +1,31 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "remoting/host/security_key/remote_security_key_messages.h"
+
+// Limit remote security key messages to 256KB.
+const uint32_t remoting::kMaxRemoteSecurityKeyMessageByteCount = 256 * 1024;

[Sergey Ulanov, 2016/03/23 19:07:25]

I think all these constants can be moved to the .h file. They don't need this
.cc file.

[joedow, 2016/03/24 17:48:08]

Done.

+
+const int remoting::kRemoteSecurityKeyMessageHeaderByteCount = sizeof(uint32_t);
+const int remoting::kRemoteSecurityKeyMessageControlCodeByteCount =
+    sizeof(uint8_t);
+const int remoting::kRemoteSecurityKeyMessagePayloadByteCount =
+    static_cast<int>(remoting::kMaxRemoteSecurityKeyMessageByteCount) -
+    remoting::kRemoteSecurityKeyMessageControlCodeByteCount;
+
+// ConnectToSecurityKeyEnabledSession messages.
+const uint8_t remoting::kConnectToSecurityKeyEnabledSessionMsg = 0;

[Sergey Ulanov, 2016/03/23 19:07:25]

I think these can be replaced with an enum.

[joedow, 2016/03/24 17:48:08]

Done.

+const uint8_t remoting::kConnectToSecurityKeyEnabledSessionRsp = 1;
+const uint8_t remoting::kConnectToSecurityKeyEnabledSessionErr = 2;
+
+// RemoteSecurityKeyRequest messages.
+const uint8_t remoting::kRemoteSecurityKeyRequestMsg = 3;

[Sergey Ulanov, 2016/03/23 19:07:25]

And these

[joedow, 2016/03/24 17:48:08]

Done.

+const uint8_t remoting::kRemoteSecurityKeyRequestRsp = 4;
+const uint8_t remoting::kRemoteSecurityKeyRequestErr = 5;
+
+// Unknown command error.
+const uint8_t remoting::kRemoteSecurityKeyUnknownMessageErrorMsg = 254;
+
+// Unknown error message.
+const uint8_t remoting::kRemoteSecurityKeyUnknownErrorMsg = 255;