Adapted to SIP simple stream API changes

blink/sessions.py

@@ -1785,8 +1785,8 @@ class SessionManager(object):
                         break
                 else:
                     contact = None
-            audio_stream = self.create_stream(account, 'audio') if audio else None
-            video_stream = self.create_stream(account, 'video') if video else None
+            audio_stream = self.create_stream('audio') if audio else None
+            video_stream = self.create_stream('video') if video else None
             session_item = SessionItem(name, remote_uri, session, contact, audio_stream=audio_stream, video_stream=video_stream)
             session_item.activated.connect(partial(self._SH_SessionActivated, session_item))
             session_item.deactivated.connect(partial(self._SH_SessionDeactivated, session_item))
@@ -1835,10 +1835,10 @@ class SessionManager(object):
     del _get_current_ringtone, _set_current_ringtone
 
     @staticmethod
-    def create_stream(account, type):
+    def create_stream(type):
         for cls in MediaStreamRegistry():
             if cls.type == type:
-                return cls(account)
+                return cls()
         else:
             raise ValueError('unknown stream type: %s' % type)