Run local hangup events through view model

Fixes #6143
// FREEBIE

src/org/thoughtcrime/securesms/WebRtcCallActivity.java

@@ -181,11 +181,11 @@ public class WebRtcCallActivity extends Activity {
     intent.setAction(WebRtcCallService.ACTION_LOCAL_HANGUP);
     startService(intent);
 
-    WebRtcViewModel event = EventBus.getDefault().getStickyEvent(WebRtcViewModel.class);
-
-    if (event != null) {
-      WebRtcCallActivity.this.handleTerminate(event.getRecipient());
-    }
+//    WebRtcViewModel event = EventBus.getDefault().getStickyEvent(WebRtcViewModel.class);
+//
+//    if (event != null) {
+//      WebRtcCallActivity.this.handleTerminate(event.getRecipient());
+//    }
   }
 
   private void handleIncomingCall(@NonNull WebRtcViewModel event) {

src/org/thoughtcrime/securesms/service/WebRtcCallService.java

@@ -569,6 +569,7 @@ public class WebRtcCallService extends Service implements InjectableType, CallSt
 
       this.dataChannel.send(new DataChannel.Buffer(ByteBuffer.wrap(Data.newBuilder().setHangup(Hangup.newBuilder().setId(this.callId)).build().toByteArray()), false));
       sendMessage(this.recipient, SignalServiceCallMessage.forHangup(new HangupMessage(this.callId)));
+      sendMessage(WebRtcViewModel.State.CALL_DISCONNECTED, this.recipient, localVideoEnabled, remoteVideoEnabled);
     }
 
     terminate();
@@ -621,7 +622,7 @@ public class WebRtcCallService extends Service implements InjectableType, CallSt
                                                                                                                                      .setEnabled(localVideoEnabled))
                                                                        .build().toByteArray()), false));
     }
-    
+
     sendMessage(viewModelStateFor(callState), this.recipient, localVideoEnabled, remoteVideoEnabled);
   }