diff -r 000000000000 -r 6474c204b198 widget/xremoteclient/nsRemoteClient.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/xremoteclient/nsRemoteClient.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,81 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=4:tabstop=4:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsRemoteClient_h__
+#define nsRemoteClient_h__
+
+#include "nscore.h"
+
+/**
+ * Pure-virtual common base class for remoting implementations.
+ */
+
+class nsRemoteClient
+{
+public:
+  /**
+   * Initializes the client
+   */
+  virtual nsresult Init() = 0;
+
+  /**
+   * Sends a command to a running instance.
+   *
+   * @param aProgram This is the preferred program that we want to use
+   * for this particular command.
+   *
+   * @param aNoProgramFallback This boolean attribute tells the client
+   * code that if the preferred program isn't found that it should
+   * fail not send the command to another server.
+   *
+   * @param aUsername This allows someone to only talk to an instance
+   * of the server that's running under a particular username.  If
+   * this isn't specified here it's pulled from the LOGNAME
+   * environmental variable if it's set.
+   *
+   * @param aProfile This allows you to specify a particular server
+   * running under a named profile.  If it is not specified the
+   * profile is not checked.
+   *
+   * @param aCommand This is the command that is passed to the server.
+   * Please see the additional information located at:
+   * http://www.mozilla.org/unix/remote.html
+   * 
+   * @param aDesktopStartupID the contents of the DESKTOP_STARTUP_ID environment
+   * variable defined by the Startup Notification specification
+   * http://standards.freedesktop.org/startup-notification-spec/startup-notification-0.1.txt
+   *
+   * @param aResponse If there is a response, it will be here.  This
+   * includes error messages.  The string is allocated using stdlib
+   * string functions, so free it with free().
+   *
+   * @return true if succeeded, false if no running instance was found.
+   */
+  virtual nsresult SendCommand(const char *aProgram, const char *aUsername,
+                               const char *aProfile, const char *aCommand,
+                               const char* aDesktopStartupID,
+                               char **aResponse, bool *aSucceeded) = 0;
+
+  /**
+   * Send a complete command line to a running instance.
+   *
+   * @param aDesktopStartupID the contents of the DESKTOP_STARTUP_ID environment
+   * variable defined by the Startup Notification specification
+   * http://standards.freedesktop.org/startup-notification-spec/startup-notification-0.1.txt
+   *
+   * @see sendCommand
+   * @param argc The number of command-line arguments.
+   * 
+   */
+  virtual nsresult SendCommandLine(const char *aProgram, const char *aUsername,
+                                   const char *aProfile,
+                                   int32_t argc, char **argv,
+                                   const char* aDesktopStartupID,
+                                   char **aResponse, bool *aSucceeded) = 0;
+};
+
+#endif // nsRemoteClient_h__