[Cronet] Add new API methods before removing old ones

components/cronet/android/api/src/org/chromium/net/UrlRequest.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 android.support.annotation.IntDef;
 import android.util.Log;
 import android.util.Pair;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.concurrent.Executor;
 
 /**
  * Controls an HTTP request (GET, PUT, POST etc).
  * Created using {@link UrlRequest.Builder}.
  * Note: All methods must be called on the {@link Executor} passed in during creation.
  */
 public interface UrlRequest {
     /**
      * Builder for {@link UrlRequest}s. Allows configuring requests before constructing them
      * with {@link Builder#build}.
      */
-    public static final class Builder {
+    public static class Builder {
         private static final String ACCEPT_ENCODING = "Accept-Encoding";
         // All fields are temporary storage of UrlRequest configuration to be
         // copied to built UrlRequests.
 
         // CronetEngine to execute request.
         final CronetEngine mCronetEngine;
         // URL to request.
         final String mUrl;
         // Callback to receive progress callbacks.
         final Callback mCallback;
@@ skipping 655 matching lines @@
      *         the request's current status. {@code listener} will be invoked
      *         back on the {@link Executor} passed in when the request was
      *         created.
      */
     public void getStatus(final StatusListener listener);
 
     // Note:  There are deliberately no accessors for the results of the request
     // here. Having none removes any ambiguity over when they are populated,
     // particularly in the redirect case.
 }