chromeos: Remove dbus::FileDescriptor from SessionManagerClient

chromeos/dbus/session_manager_client.h

 // Copyright (c) 2012 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 CHROMEOS_DBUS_SESSION_MANAGER_CLIENT_H_
 #define CHROMEOS_DBUS_SESSION_MANAGER_CLIENT_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "chromeos/chromeos_export.h"
 #include "chromeos/dbus/dbus_client.h"
 #include "chromeos/dbus/dbus_client_implementation_type.h"
+#include "chromeos/dbus/dbus_method_call_status.h"
 
 namespace cryptohome {
 class Identification;
 }
 
 namespace chromeos {
 
 // SessionManagerClient is used to communicate with the session manager.
 class CHROMEOS_EXPORT SessionManagerClient : public DBusClient {
  public:
@@ skipping 49 matching lines @@
 
   // Returns the most recent screen-lock state received from session_manager.
   // This mirrors the last Observer::ScreenIsLocked() or ScreenIsUnlocked()
   // call.
   virtual bool IsScreenLocked() const = 0;
 
   // Kicks off an attempt to emit the "login-prompt-visible" upstart signal.
   virtual void EmitLoginPromptVisible() = 0;
 
   // Restarts the browser job, passing |argv| as the updated command line.
-  virtual void RestartJob(const std::vector<std::string>& argv) = 0;
+  // The session manager requires a RestartJob caller to open a socket pair and
+  // pass one end while holding the local end open for the duration of the call.
+  // The session manager uses this to determine whether the PID the restart
+  // request originates from belongs to the browser itself.
+  // This method duplicates |socket_fd| so it's OK to close the FD without
+  // waiting for the result.
+  virtual void RestartJob(int socket_fd,
+                          const std::vector<std::string>& argv,
+                          const VoidDBusMethodCallback& callback) = 0;
 
   // Starts the session for the user.
   virtual void StartSession(
       const cryptohome::Identification& cryptohome_id) = 0;
 
   // Stops the current session.
   virtual void StopSession() = 0;
 
   // Starts the factory reset.
   virtual void StartDeviceWipe() = 0;
@@ skipping 154 matching lines @@
   // Create() should be used instead.
   SessionManagerClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SessionManagerClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_SESSION_MANAGER_CLIENT_H_