Initial implementation of Cronet Async API.

components/cronet/android/java/src/org/chromium/net/UrlRequestFactory.java

-// Copyright 2014 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.
-
-package org.chromium.net;
-
-import java.util.concurrent.Executor;
-
-/**
- * A factory for {@link UrlRequest}'s, which uses the best HTTP stack
- * available on the current platform.
- */
-public interface UrlRequestFactory {
-    /**
-     * Creates an UrlRequest object. All UrlRequest functions must
-     * be called on the Executor's thread, and all callbacks will be called
-     * on the Executor's thread as well.
-     * createRequest itself may be called on any thread.
-     * @param url URL for the request.
-     * @param listener Callback interface that gets called on different events.
-     * @param executor Executor on which all callbacks will be called.
-     * @return new request.
-     */
-    public abstract UrlRequest createRequest(String url,
-            UrlRequestListener listener, Executor executor);
-}