Updating Message Reader and Writer classes to use an interface.

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.h b/remoting/host/security_key/remote_security_key_message_writer_impl.h
similarity index 65%
copy from remoting/host/security_key/remote_security_key_message_writer.h
copy to remoting/host/security_key/remote_security_key_message_writer_impl.h
index 1566e7990eddc0227e1f616bb5d72283cf025546..13d99e407eccc23522f8371b47a6de4b432d0d27 100644
--- a/remoting/host/security_key/remote_security_key_message_writer.h
+++ b/remoting/host/security_key/remote_security_key_message_writer_impl.h
@@ -2,40 +2,40 @@
 // 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_H_
-#define REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_WRITER_H_
+#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 RemoteSecurityKeyMessageWriter {
+class RemoteSecurityKeyMessageWriterImpl
+    : public RemoteSecurityKeyMessageWriter {
  public:
-  explicit RemoteSecurityKeyMessageWriter(base::File output_file);
-  ~RemoteSecurityKeyMessageWriter();
+  explicit RemoteSecurityKeyMessageWriterImpl(base::File output_file);
+  ~RemoteSecurityKeyMessageWriterImpl() override;
 
-  // Writes a remote security key message w/o a payload to |output_stream_|.
-  bool WriteMessage(RemoteSecurityKeyMessageType message_type);
-
-  // Writes a remote security key message with a payload to |output_stream_|.
+ private:
+  // RemoteSecurityKeyMessageWriter interface.
+  bool WriteMessage(RemoteSecurityKeyMessageType message_type) override;
   bool WriteMessageWithPayload(RemoteSecurityKeyMessageType message_type,
-                               const std::string& message_payload);
+                               const std::string& message_payload) override;
 
- private:
   // 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(RemoteSecurityKeyMessageWriter);
+  DISALLOW_COPY_AND_ASSIGN(RemoteSecurityKeyMessageWriterImpl);
 };
 
 }  // namespace remoting
 
-#endif  // REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_WRITER_H_
+#endif  // REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_WRITER_IMPL_H_