Fixing a Dr. Memory hang in the remoting_unittests

remoting/host/security_key/remote_security_key_message_reader_impl.h

Index: remoting/host/security_key/remote_security_key_message_reader_impl.h
diff --git a/remoting/host/security_key/remote_security_key_message_reader_impl.h b/remoting/host/security_key/remote_security_key_message_reader_impl.h
index 873d478093a2cdad64788c5c5bd2c7cf77ad7c0f..051fc3338e6e3b6b7acc4b898685275f83c80588 100644
--- a/remoting/host/security_key/remote_security_key_message_reader_impl.h
+++ b/remoting/host/security_key/remote_security_key_message_reader_impl.h
@@ -38,6 +38,10 @@ class RemoteSecurityKeyMessageReaderImpl
   // |message_callback_| on the originating thread. Run on |read_task_runner_|.
   void ReadMessage();
 
+  // Reads the nubmer of bytes indicated by |bytes_to_read| into |buffer| from
+  // |read_stream_|.  Returns true if all bytes were retrieved successfully.
+  bool ReadFromStream(char* buffer, size_t bytes_to_read);
+
   // Callback run on |read_task_runner_| when an error occurs or EOF is reached.
   void NotifyError();