Add Data Saver support to Cronet

components/cronet/android/java/src/org/chromium/net/UrlRequestContextConfig.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 org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
@@ skipping 84 matching lines @@
     }
 
     /**
      * Boolean, enable SPDY if true.
      */
     public UrlRequestContextConfig enableSPDY(boolean value) {
         return putBoolean(UrlRequestContextConfigList.ENABLE_SPDY, value);
     }
 
     /**
+     * Boolean, enable Data Reduction Proxy if true.

[mmenke, 2015/04/01 15:46:14]

Need to describe what "key" is, and maybe rename it (api_key?)

[bengr, 2015/04/24 02:30:43]

Done. The format is TBD.

+     */
+    public UrlRequestContextConfig enableDataReductionProxy(boolean value,
+            String key) {
+        return (putBoolean(UrlRequestContextConfigList
+                        .ENABLE_DATA_REDUCTION_PROXY, value)
+                    .putString(UrlRequestContextConfigList
+                            .DATA_REDUCTION_PROXY_KEY, key));
+    }
+
+    /**
      * Enumeration, disable or enable cache in memory or on disk.
      */
     public enum HttpCache {
         /**
          * Disable cache, some data may still be temporarily stored in memory.
          */
         DISABLED,
 
         /**
          * Enable in memory cache, including HTTP data.
@@ skipping 95 matching lines @@
      * @param quicConnectionOptions comma-separated QUIC options (for example
      * "PACE,IW10") to use if QUIC is enabled.
      */
     public UrlRequestContextConfig setExperimentalQuicConnectionOptions(
             String quicConnectionOptions) {
         return putString(UrlRequestContextConfigList.QUIC_OPTIONS,
                          quicConnectionOptions);
     }
 
     /**
+     * Overrides Data Reduction Proxy configuration parameters with a comma-
+     * separated list that specifies the primary proxy name, the fallback
+     * proxy name, and a secure proxy check url. E.g:

[mmenke, 2015/04/01 15:46:14]

Secure proxy check?  Should also comment if they're all mandatory.  Also suggest
taking three separate strings.

[bengr, 2015/04/24 02:30:43]

Done.

+     * https://www.primary.com,https://www.fallback.com:80,http://check.com/
+     * @param dataReductionProxyParams
+     */
+    public UrlRequestContextConfig setDataReductionProxyOptions(
+            String dataReductionProxyParams) {
+        return putString(
+                UrlRequestContextConfigList.DATA_REDUCTION_PROXY_OPTIONS,
+                dataReductionProxyParams);
+    }
+
+    /**
      * Get JSON string representation of the config.
      */
     @Override
     public String toString() {
         return mConfig.toString();
     }
 
     /**
      * Sets a boolean value in the config. Returns a reference to the same
      * config object, so you can chain put calls together.
@@ skipping 28 matching lines @@
         try {
             mConfig.put(key, value);
         } catch (JSONException e) {
             // Intentionally do nothing.
         }
         return this;
     }
 
     private JSONObject mConfig = new JSONObject();
 }