ChromeOS: Accept NULL SystemBus in MediaTransferProtocolManager.

device/media_transfer_protocol/media_transfer_protocol_daemon_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.
 
 // Client code to talk to the Media Transfer Protocol daemon. The MTP daemon is
 // responsible for communicating with PTP / MTP capable devices like cameras
 // and smartphones.
 
 #ifndef DEVICE_MEDIA_TRANSFER_PROTOCOL_MEDIA_TRANSFER_PROTOCOL_DAEMON_CLIENT_H_
 #define DEVICE_MEDIA_TRANSFER_PROTOCOL_MEDIA_TRANSFER_PROTOCOL_DAEMON_CLIENT_H_
@@ skipping 145 matching lines @@
                                uint32 file_id,
                                const GetFileInfoCallback& callback,
                                const ErrorCallback& error_callback) = 0;
 
   // Registers given callback for events.
   // |storage_event_handler| is called when a mtp storage attach or detach
   // signal is received.
   virtual void SetUpConnections(const MTPStorageEventHandler& handler) = 0;
 
   // Factory function, creates a new instance and returns ownership.
-  // For normal usage, set |is_stub| to false.
-  static MediaTransferProtocolDaemonClient* Create(dbus::Bus* bus,
-                                                   bool is_stub);
+  static MediaTransferProtocolDaemonClient* Create(dbus::Bus* bus);
 
  protected:
   // Create() should be used instead.
   MediaTransferProtocolDaemonClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MediaTransferProtocolDaemonClient);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_MEDIA_TRANSFER_PROTOCOL_MEDIA_TRANSFER_PROTOCOL_DAEMON_CLIENT_H_