}

    synchronized (this) {
      listeners.remove(state);
    }

    // Success!
    return new MockResponse()
        .setResponseCode(302)
        .addHeader("Location", "https://twitter.com/CuteEmergency/status/789457462864863232");
  }

  public interface Listener {
    void sessionGranted(OAuthSession session);
  }

  @Override public void close() {