Revert of Renaming Gnubby and RemoteSecurityKey files/classes/members

remoting/host/security_key/remote_security_key_message_writer_impl.h

Index: remoting/host/security_key/remote_security_key_message_writer_impl.h
diff --git a/remoting/host/security_key/remote_security_key_message_writer_impl.h b/remoting/host/security_key/remote_security_key_message_writer_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..13d99e407eccc23522f8371b47a6de4b432d0d27
--- /dev/null
+++ b/remoting/host/security_key/remote_security_key_message_writer_impl.h
@@ -0,0 +1,41 @@
+// 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.
+
+#ifndef REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_WRITER_IMPL_H_
+#define REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_WRITER_IMPL_H_
+
+#include <string>
+
+#include "base/files/file.h"
+#include "base/macros.h"
+#include "remoting/host/security_key/remote_security_key_message_writer.h"
+#include "remoting/host/security_key/security_key_message.h"
+
+namespace remoting {
+
+// Used for sending remote security key messages using a file handle.
+class RemoteSecurityKeyMessageWriterImpl
+    : public RemoteSecurityKeyMessageWriter {
+ public:
+  explicit RemoteSecurityKeyMessageWriterImpl(base::File output_file);
+  ~RemoteSecurityKeyMessageWriterImpl() override;
+
+ private:
+  // RemoteSecurityKeyMessageWriter interface.
+  bool WriteMessage(RemoteSecurityKeyMessageType message_type) override;
+  bool WriteMessageWithPayload(RemoteSecurityKeyMessageType message_type,
+                               const std::string& message_payload) override;
+
+  // Writes |bytes_to_write| bytes from |message| to |output_stream_|.
+  bool WriteBytesToOutput(const char* message, int bytes_to_write);
+
+  base::File output_stream_;
+  bool write_failed_ = false;
+
+  DISALLOW_COPY_AND_ASSIGN(RemoteSecurityKeyMessageWriterImpl);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_WRITER_IMPL_H_