[Cronet] Enable Brotli

components/cronet/android/api/src/org/chromium/net/CronetEngine.java

 // Copyright 2015 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.content.Context;
 import android.net.http.HttpResponseCache;
 import android.support.annotation.VisibleForTesting;
 
@@ skipping 154 matching lines @@
          * SDCH</a> compression is enabled. Defaults to disabled.
          * @param value {@code true} to enable SDCH, {@code false} to disable.
          * @return the builder to facilitate chaining.
          */
         public Builder enableSdch(boolean value) {
             mBuilderDelegate.enableSdch(value);
             return this;
         }
 
         /**
+         * Sets whether <a href="https://tools.ietf.org/html/rfc7932">Brotli</a> compression is
+         * enabled. If enabled, Brotli will be advertised in Accept-Encoding request headers.
+         * Defaults to disabled.
+         * @param value {@code true} to enable Brotli, {@code false} to disable.
+         * @return the builder to facilitate chaining.
+         */
+        public Builder enableBrotli(boolean value) {

[mef, 2017/04/12 17:45:49]

Addition of public API requires to bump API version:

components/cronet/tools/update_api.py --api_jar
components/cronet/android/cronet_api.jar

[xunjieli, 2017/04/13 21:26:14]

Done.

+            mBuilderDelegate.enableBrotli(value);
+            return this;
+        }
+
+        /**
          * Setting to disable HTTP cache. Some data may still be temporarily stored in memory.
          * Passed to {@link #enableHttpCache}.
          */
         public static final int HTTP_CACHE_DISABLED = 0;
 
         /**
          * Setting to enable in-memory HTTP cache, including HTTP data.
          * Passed to {@link #enableHttpCache}.
          */
         public static final int HTTP_CACHE_IN_MEMORY = 1;
@@ skipping 331 matching lines @@
      * thread calling {@link Executor#execute} to prevent blocking networking
      * operations and causing exceptions during shutdown.
      *
      * @param url URL for the generated requests.
      * @param callback callback object that gets invoked on different events.
      * @param executor {@link Executor} on which all callbacks will be invoked.
      */
     public abstract UrlRequest.Builder newUrlRequestBuilder(
             String url, UrlRequest.Callback callback, Executor executor);
 }