The Tor Browser / file revision

 /*

  * Copyright (C) 2013 Square, Inc.

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *      http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package com.squareup.picasso;

 public interface Callback {

   void onSuccess();

   void onError();

   public static class EmptyCallback implements Callback {

     @Override public void onSuccess() {

     }

     @Override public void onError() {

     }

   }

 }